Motion A boy throws a ball up and catches it when the ball falls back. In which part
of the motion the ball is accelerating?
(1)
During downward motion
(2)
When the ball comes to rest
(3)
During upward motion
(4)
When the boy catches the ball
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 1 Solution : -. |
Motion The correct velocity-time graph for zero acceleration is:
(1) Graph-D
(2) Graph-A
(3) Graph-C
(4) Graph-B
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 4 Solution : -. |
Motion
The relation among v, w and r is -
(1) w = v / r
(2) v = w / r
(3) w = r / v
(4) None of these
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 1 Solution : -. |
Motion The area enclosed by velocity-time graph and the time axis will be equal to
the magnitude of
(1) displacement
(2) speed
(3) acceleration
(4) distance
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 1 Solution : -. |
Motion A man is moving with 36 kmph. The time of reaction is 0.9 seconds. On seeing
an obstacle in the path, he applies brakes and decelerates at 5 m/s2,
the total distance covered before he
stops is:
(1) 19 m
(2) 17 m
(3) 16 m
(4) 18 m
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 1 Solution : -. |
Motion A body is moving with uniform velocity of 10 ms–1
The velocity of the body after 10 s is -
(1) 100 ms–1
(2) 50 ms–1
(3) 10 ms–1
(4) 5 ms–1
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 3 Solution : -. |
Motion A body is moving along a straight line at 20 ms–1
undergoes an acceleration of 4 ms After 2 s, its speed will be-
(1) 8 ms–1
(2) 12 ms–1
(3) 16 ms–1
(4) 28 ms–1
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 4 Solution : -. |
Motion
The time interval between 24 to 52 seconds when the body travels the fastest is?
(1) 28 to 32 s
(2) 40 to 50 s
(3) 42 to 52 s
(4) 32 to 42 s
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 3 Solution : -. |
Motion The brakes applied to a car produce a negative acceleration of 6ms–2
If the car stops after 2 seconds, the initial velocity of the car is -
(1) 6 ms–1
(2) 12 ms–1
(3) 24 ms–1
(4) Zero
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 2 Solution : -. |
