The diagram below shows a series of photographs of a ball rolling with constant velocity. 2.0 m The camera was capturing images at a constant rate of 20 per second. What was the speed of the ball? A 1.0 m s-1 C 2.5 ms¹ B 2.0 ms¹ D 10.0 m s-¹ ( )
The diagram below shows a series of photographs of a ball rolling with constant velocity. 2.0 m The camera was capturing images at a constant rate of 20 per second. What was the speed of the ball? A 1.0 m s-1 C 2.5 ms¹ B 2.0 ms¹ D 10.0 m s-¹ ( )
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Transcribed Image Text:21. The diagram below shows a series of A 80
photographs of a ball rolling with constant
velocity.
The camera was capturing images at a constant
rate of 20 per second. What was the speed of
the ball?
A 1.0 m s-¹
C 2.5 m S-¹
B 2.0 m S-¹
10.0 m s-¹ ( )
Obris A
D
22. The velocity-time graph below represents the
motion of a particle along a straight line.
velocity/m s-¹
4
20
10-
-10-
-20
2
A
C
2.0 m
4
Which of the following is true?
I
I only
I and II only
velocity
12 14
10 12
B
D
The particle's velocity is momentarily zero
at t = 5 s.
11
The particle comes back to its starting point
in 12 s.
III
The particle travels in the opposite direction
between t= 5 s and t = 12 s. to disp
no es
A
-time/s
Il only
I, II, and III ( )
23. The graph of velocity against time for a moving
object is shown.
time
Which of the following is the corresponding
graph of displacement against time?
A
B
C
D
displacement
0
displacement
0
displacement
0
displacement
0
C velocity
Earth
Mars
24. When someone on Earth drops a rock, it
accelerates at about 10 m s-2. When a rock is
dropped on Mars, the rock accelerates at about
2.0 m s2. Which diagram shows the velocity-
time graphs for a rock dropped on Earth and
dropped on Mars?
A velocity
time
Earth
Mars
time
time
time
time
time
B velocity
D
velocity Earth
Earth
Mars
time
Mars
time
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