CH.PHYSICS

# Motion in a plane Descriptive Questions

__Motion in a Plane:__

__Motion in a Plane:__

1. Show that the path of a horizontal projectile is a parabola. 3 M

2. Obtain an expression for time of flight and range of a horizontal projectile projected with velocity *u* from the top of a tower of height *h*. 3 M

3. A man 80 kg is supported by two cables as shown in the fig. The tension T1 and T2 are 3 M

4. An aeroplane flying horizontally at a height of 0.49 Km with a velocity 98 ms-1 released a bomb. On reaching the ground velocity of the bomb is? 3 M

5. A body is projected horizontally from the top of a tower with

6. An aeroplane flying horizontally at a height of 0.49 Km with a velocity 98 ms-1 released a bomb. On reaching the ground velocity of the bomb is? 3 M

7. A body of 10 Kg is suspended by a rope and is pulled to a side by means of a horizontal force so that the rope makes an angle of

8. A body of mass 10 Kg is suspended by a rope of 50 cm long and pulled to a side through a horizontal distance of 30 cm by means of a horizontal force. Then that horizontal force is? 2 M

9. A body is projected horizontally from the top of a hill with a velocity 9.8 m/sec the time elapsed before the vertical component of velocity is twice the horizontal velocity is? 2 M

10. A body is projected horizontally with 10 ms-1 from the top of a tower of height 20 m. On reaching the ground its displacement is? (g= 10 m/sec) 2 M