Question

1. CASE STUDY QUESTION

Read the following and answer any four questions from (I) to (V) Kapil first runs a distance of 50 metres in 25seconds in going from his home to the shop in the East direction, and then runs a distance of 50 metres again in 25 seconds in the reverse direction from the shop to reach back home from where he started .

I. The speed of the boy is
a. 1m/s
b. 2m/s
c. 3m/s
d. 4 m/s

II. The velocity of the boy is
a) 1 m/s
b) 2 m/s
c) 3 m/s
d) 0 m/s

III. A particle is moving in a circular path of radius 20 cm. The displacement after half a circle would be
a. 20 cm
b. 40  cm
c. 60  cm
d. 40 cm

IV. A car accelerates at a rate of 1.5m/s2 in a straight road. The increase in velocity in 4s is
a. 6m/s
b. 5m/s
c. 4m/s
d. 2m/s

V. The acceleration of a moving object can be determined by
a. Area under velocity time graph
b. Slope of displacement time graph
c. Slope of velocity time graph
d. Area of distance time graph​

Answer 1

Answer:

I. 2m/s

II. 2m/s

III. 40 cm

IV. 6m/s

V. Slope of velocity time graph