Test Review

A book is moved once around the perimeter of a tabletop with the dimensions 1.0 m × 2.0 m. If the book ends up at its original position, what is its displacement and what is the distance it traveled?

A vector lies in the x-y plane. For what orientations will both components be positive?

Which of the following quantities, if any, remain constant as a projectile moves through its parabolic trajectory?

(i) speed

(ii) acceleration

(iii) the horizontal component of velocity

(iv) the vertical component of velocity

As a projectile thrown upward at a non-vertical angle moves in a parabolic path, at what point along its path are the velocity and acceleration vectors for the projectile parallel to each other?

Which of the following objects can't be accelerating?

Consider the following controls in an automobile: gas pedal, brake, steering wheel. The control(s) that causes the car to accelerate are

A woman jogs along the dashed path from A to B in 20 seconds. What is the average speed of the woman?

What angles give the same horizontal range?

As a projectile moves in its parabolic path, the velocity and acceleration vectors are perpendicular to each other

Lets say that during a thunder storm you measure the time lag between the flash and the thunderclap to be 3 seconds. If the speed of sound is about 340 m/s, which of the following is the best estimate of your distance to the lightening bolt?