Physics Honors

A boat's initial velocity is 30m/s. After 2.5 seconds its velocity 5m/s. What is the boat's rate of acceleration?

-10m/s^2

The friction on the water of a boat produces an acceleration of -10m/s^2. If the boat is travelling at 30m/s and the mtor is shut off, how long does it take the boat to slow down to 5.0m/s?

2.5s

If the acceleration of a motorboat is 4m/s and the motorboat starts from rest, what is its velocity after 6 seconds?

24m/s

What is the acceleration of a boat if it starts from rest and then reaches a velocity of 24m/s in 6.0s?

4m/s^2

A boat sailing against the current experiences an acceleration of -11m/s^2. If the boats initial velocity is 44m/s upstream, how long until it comes to a stop?

4s

True or false? For an object that experiences constant non-zero acceleration, Vf = Vi.

False

If an object has zero acceleration, does that mean it has zero velocity?

No

True or false? An object can have a velocity of zero but still have an acceleration.

True

True or false? An object with zero acceleration is not changing its velocity.

True

A ball is thrown into the air. At the moment the ball has reached its highest location, the ball has zero _____________ with non-zero acceleration.

Velocity

Using this formula Vf = Vi +at, If a vehicle starts from rest and accelerates forward at 4.5m/s^2 for 8s, what is the final velocity of the vehicle?

Vf = 36m/s