1D Motion

A ball is shot straight up from the surface of the earth with an initial speed of 19.6 m/s. Neglect any effects due to air resistance. What maximum height will the ball reach?

19.6 m

A race car has a speed of 80 m/s when the driver releases a drag parachute causes a deceleration of -4 m/s², how far will the car travel before it stops?

800 m

A Canadian goose flew 845 km from Southern California to Oregon with an average speed of 28.0 m/s. How long, in hours, did it take the goose to make this journey?

8.38 h

Which of the following situations is not possible? A body travels with a northward velocity and a northward acceleration. A body travels with a constant velocity and a time-varying acceleration. A body travels with a constant acceleration and a time-varying velocity. A body travels with a northward velocity and a southward acceleration. A body has zero velocity and non-zero acceleration.

A body travels with a constant velocity and a time-varying acceleration.

Ball A is dropped from rest from a window. At the same instant, ball B is thrown downward; and ball C is thrown upward from the same window. Which statement concerning the balls after their release is necessarily true if air resistance is neglected?

All three balls have the same acceleration at any instant

An object moving along a straight line is decelerating. Which one of the following statements concerning the objects acceleration is necessarily true?

The direction of the acceleration is in the direction opposite to that of the velocity.

Starting from rest, a particle that is confined to move along a straight line is accelerated at a rate of 5.0 m/s². Which statement concerning the slope of the position versus time graph for this particle is true?

The slope is not constant and increases with increasing time

Starting from rest, a particle confined to move along a straight line is accelerated at a rate of 5.0 m/s². Which one of the following statements accurately describes the motion of this particle?

The speed of the particle increases by 5.0 m/s during each second

A particle travels along a curved path between two points P and Q as shown. The displacement of the particle does NOT depend on

the distance traveled from P to Q