- How long does the ball take to hit the ground after it reaches its highest point answer in units of S?
- How can speed be calculated?
- How can you tell how long a ball is in the air?
- Why does a ball thrown vertically upward fall down?
- What is the velocity 1 second before it reaches its highest point?
- Does speed increase in free fall?
- Does a ball go faster up or down?
- Which ball has greater acceleration?
- What is the initial velocity of the particle?
- When the ball reaches its highest point which of the following is true?
- What happens when you throw a ball upwards?
- How high is the ball after 1 second?
- Which ball hits the ground with greater speed which ball hits the ground with greater speed the ball thrown upward the ball thrown downward neither the balls hit the ground with the same speed?
- What is the acceleration at the highest point?
- Can a body have zero velocity and finite acceleration?
- How long does it take the ball to reach its highest point?
- When a ball is moving upward then at highest point speed and acceleration of the body are?
- When a ball is thrown upward What is its velocity at its highest point?
- Why is velocity maximum when acceleration is zero?
- When a ball is thrown straight up by how much does the speed decrease each second neglect air resistance?
- How do you find time with maximum height?

## How long does the ball take to hit the ground after it reaches its highest point answer in units of S?

Initial up speed is 13, and acceleration is 9.8 down, so v=v0+a*t and at the highest point, v=0, so 13–9.8*t so t=13/9.8=1.33 seconds.

It takes 1.33 for the ball to achieve its highest point..

## How can speed be calculated?

The formula for speed is speed = distance ÷ time. To work out what the units are for speed, you need to know the units for distance and time. In this example, distance is in metres (m) and time is in seconds (s), so the units will be in metres per second (m/s).

## How can you tell how long a ball is in the air?

Use the vertical motion model, h = -16t2 + vt + s where v is the initial velocity in feet/second and s is the height in feet to calculate how long the basketball will be in the air for.

## Why does a ball thrown vertically upward fall down?

Vertical motion under gravity. When you throw an object upwards, it will eventually fall back to the ground under the earth’s gravity. … An object that is thrown vertically upwards decelerates under the earth’s gravity. Its speed decreases until it attains a maximum height, where the velocity is zero.

## What is the velocity 1 second before it reaches its highest point?

At the top, its velocity is zero. (b) What is its velocity 1 s before it reaches its highest point? One second before reaching the top, it is moving up at v = 10 m/s.

## Does speed increase in free fall?

Without the effects of air resistance, the speed of an object free falling toward Earth would increase by about 32 ft (9.8 m) per second every second. … At this point, they will have reached terminal velocity and will fall at a constant speed, no longer accelerating.

## Does a ball go faster up or down?

This variance was due to the inclusion of air resistance in our model. … Whilst on the way down, there is one force in the upward direction which increases as the ball gets faster (air resistance) and one constant force in the downward direction (gravity).

## Which ball has greater acceleration?

Both encounter the same air resistance, but, the heavier ball has a greater downward force which overcomes the upward force of the air. The heavier ball will still reach a t erminal velocity. But, it will accelerate longer than the hollow ball, and its terminal velocity will be greater.

## What is the initial velocity of the particle?

The initial velocity,vi is the velocity of the object before acceleration causes a change. After accelerating for some amount of time, the new velocity is the final velocity, vf. Initial Velocity Formula Questions: 1) A train is moving slowly through a city.

## When the ball reaches its highest point which of the following is true?

When the ball is at the highest point the velocity of the ball is zero. At the height point the kinetic energy is zero and potential energy is maximum. At maximum point momentum cannot be maximum because velocity is zero. Acceleration on the ball is equal to acceleration due to gravity on the ball.

## What happens when you throw a ball upwards?

When we throw a ball upwards, its speed retards gradually. This is because the earth produces a gravitational force which brings down everything that goes up. So when a ball is thrown upward the gravity applies force to bring it down which decreases its speed of going up.

## How high is the ball after 1 second?

86 feetAfter 1 second, the height of the ball is 86 feet.

## Which ball hits the ground with greater speed which ball hits the ground with greater speed the ball thrown upward the ball thrown downward neither the balls hit the ground with the same speed?

Which ball hits the ground with greater speed? ANSWER: the ball thrown upward the ball thrown downward Neither; the speeds are the same.

## What is the acceleration at the highest point?

zeroAt a projectile’s highest point, its acceleration is zero.

## Can a body have zero velocity and finite acceleration?

This acceleration is the gravitational acceleration. At that point the component of acceleration/gravitational acceleration works there. So, at the topmost point the velocity is zero but acceleration is not and has a finite value. … Therefore, a body can have zero velocity and finite acceleration.

## How long does it take the ball to reach its highest point?

3 seconds1 Expert Answer So the ball reaches its maximum height after 3 seconds.

## When a ball is moving upward then at highest point speed and acceleration of the body are?

When a body is thrown vertically upwards, at the highest point only velocity is zero because the acceleration due to gravitational force is acting downward continuously and that is the reason for velocity being zero at the highest point, hence velocity is zero because of the acceleration.

## When a ball is thrown upward What is its velocity at its highest point?

Acceleration from gravity is always constant and downward, but the direction and magnitude of velocity change. At the highest point in its trajectory, the ball has zero velocity, and the magnitude of velocity increases again as the ball falls back toward the earth (see figure 1).

## Why is velocity maximum when acceleration is zero?

magnitude of Force due to gravity=magnitude of Restoring force, then the acceleration of the body is zero, and the body has maximum constant velocity. magnitude of Force due to gravity < magnitude of Force of the spring, then the velocity of the body decreases until it stops.

## When a ball is thrown straight up by how much does the speed decrease each second neglect air resistance?

When a ball is thrown straight up, its speed decreases by 10 m/s each second, since the free fall acceleration, g = 10 m/s2.

## How do you find time with maximum height?

The maximum height of an object, given the initial launch angle and initial velocity is found with:h=v2isin2θi2g h = v i 2 sin 2 θ i 2 g . The time of flight of an object, given the initial launch angle and initial velocity is found with: T=2visinθg T = 2 v i sin .