3. If you are running at 6 * m/s and decelerate at 2 * m/(s ^ 2) . How long will it take you to stop and how far will you go respectively?
A. 3 sec and 9m
B. 3 sec and 18 m
C. 6 sec and 24 m
D. 3 sec and 12m
4. If a body moves at a constant speed along a straight line, its average speed will be
A. Exactly half its speed
C. less than its speed,
B. Greater than its speed
D. Equal to its speed
5. Which physical quantity is a non-zero constant in a uniform motion?
A. Displacement
B. Velocity
C. acceleration
D. speed
6. Two car A and B are moving along a straight road in opposite directions with velocity of 50km / hr and 60 km / hr respectively. what is the Relative velocity of car A with respect to car B
A. 10 * (km)/(hr)
B. 110 ^ (km) / hr
* - 10 ^ (km) / hr
D. - 110 ^ (km) / hr
7. A body with an initial speed of 1 * m/s accelerate uniformly along a stright line at (2m)/(s ^ 2) what distance does it cover in the third second.
A. 6m
B. 18m
C 12m
D. 30m
8. What will be the extension of the system when a force of 1000N acts on two identical springs of force constant 1000 ^ N / m why there are connected in series ?
A. 5 cm
B. 500cm
C. 0.5 Cm
D. 50 Cm
9. The stretch of a spring is
A. Inversely proportional to the square of the restoring force
B. Directly proportional to the square of restoring Force
C. Directly proportional to the restoring force
D. Inversely proportional to the restoring force
10. How does the weight of a body vary from place to place on the surface of the Earth. ?
A. It is maximum b/n the equator and the pole
B. It decreases as you go to the Equator
C. It decrease as you go to the pole
D. It is constant every where