# Goal 2 Question Preview (ID: 172)

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After a rocket takes off, its distance traveled is measured and is represented in this graph. What is the average speed of the rocket?
a) 12 km/s
b) 5 km/s
c) 3 km/s
d) 1 km/s

Which graph represents a car with positive acceleration?
a) A
b) B
c) C
d) D

A student is a passenger in the front seat of a moving car. Which object is the BEST fame of reference for the student to determine how fast the car is moving relative to the ground?
a) a person sitting in the backseat of the car
b) a truck traveling in the lane next to the car
c) the driver sitting next to the student
d) a signpost on the side of the road

An object rolls east at a steady speed of 12m/s for 3 seconds. What distance did it travel?
a) 7 m
b) 18 m
c) 24 m
d) 36 m

A car's velocity changes from 0 m/s to 40 m/s in 5 seconds. What is the average acceleration of the car?
a) 5 m/s/s
b) 8 m/s/s
c) 35 m/s/s
d) 200 m/s/s

This graph represents the motion of an object. What is the average speed of the object from time=0 s to time=5 s?
a) 0.8 m/s
b) 1.2 m/s
c) 5 m/s
d) 6 m/s

A car starts from rest and accelerates uniformly at 1.7 m/s/s. How long will it take the car to reach a speed of 34 m/s?
a) 200 s
b) 58 s
c) 20 s
d) 2 s

This graph shows the motion of a person riding a bike. Which time period shows the acceleration of the bike?
a) 0-4 s
b) 4-8 s
c) 8-10 s
d) 10-16 s

A 200 kg load is suspended from a cable on a crane. The load is moved upward at a constant velocity of 20 m to the top of the building. What would be true of the force on the cable as it moved upward?
a) The force on the cable decreased.
b) The force on the cable increased.
c) The force on the cable remained the same.
d) The force on the cable depended upon the energy of the crane.

A student uses two identical balls to perfrom an investigation. The student throws ball A with a horizontal velocity from a height of 10 m. At the same time, another student drops ball B from the same height without any horizontal velocity. Neglec
a) Ball A will hit the ground first.
b) Ball B will hit the ground first.
c) Both balls will hit the ground at the same time.
d) Ball A will take twice as long to hit the ground.

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