Chapter 2 Kinematics _MC

8/13/2019 Chapter 2 Kinematics _MC

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MC Question

Chapter 2 Kinematics (MC)2P1

1. (80)

The displacement y of a point P on a plucked string varies with time t as shown in the graph above. Which of thefollowing correctly shows the variation of the velocity v of the point P with time?

A. B. C. D. E.

2. (82)

Two bodies X and Y are moving with constant velocities in the directions indicated by the arrows. At time t = 0,

they are at the positions shown. At time t .= 2 s, the magnitude of the velocity of Y relative to X is

A. 4 m s-1

B. 5 m s-1

C. 6 m s-1

D. 8 m s-1

E..10 m s-1

3. (83)

A ball bounces up and down from the floor. Which of the following graphs shows the variation of the velocity v

with time t ?

A. B. C. D. E.

4. (83)

A man is walking due east at 1.00 m s -1 on the deck of a ship steaming north at 1.73 m s-1. In what direction will

the man be walking relative to the surface of the earth ?

A. N 30o E B. N 60

oE C. NE D. N26.9

oE E. N40.9

oE

5. (83)

The velocity v of a particle varies with time t as shown. Which of the following graphs best represents the

variation of the displacement s of the particle with time t ?

A. B. C. D. E.

y

t

v

t

v

t

v

t

v

t

v

t

v

t

v

t

v

t

v

t

v

t

3 m s-1

4 m s-1

6m X Y

0

v

t

v

t 0

v

t

0

v

t 0

s

t 0

s

t 0

s

t 0

s

t 0

0

v

t

0

v

t

s

t 0



MC Question


6. (86) (88)

A football player is running at a velocity of 3 m s -1 due north. After a violent collision with another player, he is

moving at a velocity of 4 m s-1

due east. Which of the following arrows best represents the direction of his change

of velocity?

A. B. C. D. E.

7. (88)

A boy wished to swim across a river with parallel banks as shown in the diagram below. Assuming the water is

flowing at 0.5 m s-1

, and the swimming speed of the boy is 1 m s-1

, along which direction should the boy swim if

he wishes (1) to reach the opposite bank in the shortest time; and (2) to take the shortest route to the opposite

bank?

(l) shortest time (2) shortest route

A. X Y

B. X Z

C. Y X

D. Y ZE. Z Y

8. (89)

A ball bounces up and down on the ground in the vertical direction. Which of the following graphs best describes

the variation of its acceleration a with time t ?

A. B. C.

D. E.

9. (89)

Two ships X and Y travel with equal speeds. X moves due North and Y moves due East. Which of the following

best gives the direction of the velocity of X relative to Y ?

A. B. C. D. E.

10. (90)

When a man is running due north, he feels that the wind is blowing towards him from the east. What is the actual

direction of the wind ?

A. from the east B. from north-east C. from south-east

D. from south-west E. from north-west

water

current Z Y X

a

t 0

a

t

0

a

t

0

a

t

0

a

t

0



MC Question


11. (98)

The velocities of the longitudinal and transverse waves produced by an earthquake are 5.0 km s-1

and 9.0 km s-1

respectively. A seismograph records the arrival of the transverse waves 64 s before that of the longitudinal waves.

How far away was the earthquake ?

A. 256 km B. 320 km C. 576 km D. 659 km E. 720 km

12. (01)

An object accelerates uniformly along a straight line from X to Z . It passes X and Z with speeds u and v

respectively. What is its speed when it passes Y , which is the mid-point of XZ ?

A.2

22vu +

B. uv

C.vu

uv

+

2

D.2

vu +

E. It cannot be found as the distance between X and Z is not known.

13. (02)

Two small identical objects P and Q are released from rest from the top of a building 80 m above the ground. Q is

released 1 s after P . Neglecting air resistance, what is the maximum vertical separation between P and Q in the

air?

A. 5 m

B. 10 m

C. 35 m

D. 45 m

Answer

1.B 2.B 3.B 4.A 5.B 6.A 7.D 8.C 9.C 10.C 11.E 12.A 13.C

X Y Z

Chapter 2 Kinematics _MC

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