Question 1

A speedy tortoise can run with a velocity of 10.0 cm/s and a hare can run 20.0 times as fast. In a race, they both start at the same time, but the hare stops to rest for 2.00 minutes. The tortoise wins by a shell (20.0 cm). What was the length of the race?

Accepted Answer

The answer of A speedy tortoise can run with a...

Question 2

A bicyclist starts down a hill with an initial speed of 2.0 m/s. She moves down the hill with a constant acceleration, arriving at the bottom of the hill with a speed of 8.0 m/s. If the hill is 12 m long, how long did it take the bicyclist to travel down the hill?

Accepted Answer

The answer of A bicyclist starts down a hill with...

Question 3

A car originally traveling at 30 m/s manages to brake for 5.0 seconds while traveling 125 m downhill. At that point the brakes fail. After an additional 5.0 seconds it travels an additional 150 m down the hill. What was the acceleration of the car after the brakes failed?

Accepted Answer

The answer of A car originally traveling at 30 m/s...

Question 4

Starting from rest, a car travels 1350 meters in 1.00 minute. It accelerated at 1.0 m/s² until it reached its cruising speed. Then it drove the remaining distance at constant velocity. What was its cruising speed?

Accepted Answer

The answer of Starting from rest, a car travels 1350...

Question 5

A helicopter descends from a height of 600 m with uniform negative acceleration, reaching the ground at rest in 5.00 minutes. Determine the acceleration of the helicopter and its initial velocity.

Accepted Answer

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Question 6

A peregrine falcon dives at a pigeon. The falcon starts with zero downward velocity and falls with the acceleration of gravity. If the pigeon is 76.0 m below the initial height of the falcon, how long does it take the falcon to intercept the pigeon?

Accepted Answer

The answer of A peregrine falcon dives at a pigeon....

Quiz 2: Motion in One Dimension