Distance and Displacement
A man drives 50 miles east to a relative's house. He realizes he forgot his phone at the gas station and turns back 30 miles west. What is the distance and displacement?
80 miles and 20 miles
A child on top of a tree drops a ball from rest and lets it fall to the ground. What is the velocity of the rock at 4 seconds?
39.2 m/s
A kitten walks over to its mom at a distance of 2 meters in 15 seconds. What is the kitten's speed?
0.13 m/s
A 30 kg package from amazon is laying on a table, not moving. What is the normal force?
300 N
A hockey puck has a coefficient of friction that is 0.10. If the puck has a normal force of 5 N, what is the frictional force?
50 N
A baby crawls 2 feet to the right. It hears its mother calling and crawls 4 feet to the left. What is the distance and displacement?
6 feet and -2 feet.
An object at rest is tossed from a high building. What is the object's velocity after 6 seconds?
60 m/s
A girl walks 100m in half of a minute. What is her speed?
3.33 m/s
What is the weight of a stationary bowling ball that is 6kg on earth.
59N
A force of 10 N is applied to a block sitting on a table. If the coefficient of friction is 0.20, then what is the friction force?
2 N
A cat stretches on a table without moving anywhere. Its owner walks 5 feet to the right and 3 feet to the left. What is the cat's distance and displacement?
0 and 0
The definition of acceleration due to gravity
The change in velocity influenced by gravity.
A whale is swimming at a speed of 8 m/s for 17s. What is its distance traveled?
136m
Normal Force and weight are ____ under normal circumstances
equal
How much force is required to stretch a spring 12 m if it has a spring constant of 55 N/m?
6.6 N
Jacob spins around 6 times then gets dizzy. He stumbles 4 steps forward then 7 steps backward before finally falling. What is the distance and displacement?
11 steps and -3 steps
An arrow is shot straight up into the sky at an original velocity of 50 m/s. How much time would it take to reach the max height?
5 seconds
A car is driving 260 miles at a speed of 65mph. How much time does it take, in hours?
4 hours
A large object near the surface of the earth has a weight of 245N. What is the object's mass?
24.5 kg
A force of 30 N stretches a spring at a displacement of 0.73 m. What is the spring constant?
41 N/m
A truck is driving on the highway. It travels 2.5 km east to the building and back. What is the distance and displacement?
2.5 km and 0
A lady drops her purse out of the window of a building by accident. If it takes 9 seconds to hit the ground, what is the distance from where it fell?
405 m
3 minutes
What would the weight of a 12 kg dog be on the moon if the moon's acceleration due to gravity is 1.63 m/s2?
19.6N
The staples in a stapler are pulled by a spring with a normal force of 35 N. When the stapler is closed, the spring stretches 0.07 m. What is the spring constant?
500 N/m