| 1 |
A bullet shot straight up, return to its starting point in 10 sec. Its initial speed was |
- A. 9.8 ms-1
- B. 24.5 ms-1
- C. 49 ms-1
- D. 98 ms-1
|
| 2 |
An immediate source of energy for our body is: |
- A. mango
- B. <span style="color: rgb(32, 33, 36); font-family: arial, sans-serif; font-size: 32px;">Glucose</span>
- C. mushroom
- D. meat
|
| 3 |
The velocity of a free falling body just before Hattin the ground is 9.8 ms-1, the height through which is fall be |
- A. 98 m
- B. 19.6 m
- C. 4.9 m
- D. 9.8 m
|
| 4 |
Distance covered by a freely falling body is 2 seconds will be |
- A. 9.8 m
- B. 19.6 m
- C. 44.4 m
- D. 49 m
|
| 5 |
When the body moves with constant acceleration the velocity time graph is |
- A. Parabola
- B. Hyperbola
- C. Straight line
- D. Curve
|
| 6 |
The acceleration of a projectile along x axis is. |
- A. Zero
- B. Increase
- C. Decrease
- D. Equal to 'g'
|
| 7 |
When the projectile reaches the highest point of trajectory, the vertical component of velocity becomes. |
- A. Small
- B. Zero
- C. Maximum
- D. Vi cos
|
| 8 |
The time rate of change of momentum equals |
- A. Weight
- B. Applied force
- C. Impulse
- D. Mass
|
| 9 |
the acceleration along x -axis direction in case of projectile is. |
- A. Zero
- B. Equal to gravity
- C. Maximum
- D. Constant
|
| 10 |
If velocity time graph is parallel to time axis, then acceleration of moving body will be. |
- A. Maximum
- B. Positive
- C. Zero
- D. Negative
|