NDA PHYSICS QUIZ - 5

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Question 1:

A projectile is fired with velocity u making angle θ with the horizontal. What is the change in velocity when it is at the highest point.

Question 2:

A motor cycle driver doubles its velocity when he is having a turn. The force exerted outwardly will be –

Question 3:

A ball of mass 150 g moving with an acceleration 20 m/s2 is hit by a force, the force acts on it for 0.1 sec. What will be the impulsive force applied on the ball?

Question 4:

A cricket ball of mass 150 g is moving with a velocity of 12 m/s and is hit by a bat so that the ball is turned back with a velocity of 20 m/s. The force of bat acts for 0.01 s on the ball. The average force exerted by the bat on the ball is-

Question 5:

A grasshopper can jump maximum distance of 1.6 m. It spends negligible time on the ground. How far can it go in 10 seconds -

Question 6:

A boy aims a gun at a bird from a point, at a horizontal distance of 100 m. If the gun can impart a velocity of 500 m/s to the bullet. At what height above the bird must he aim his gun in order to hit it (take g = 10 m/s2).

Question 7:

A force of 50 dynes is acted on a body of mass 5 g which is at rest for an interval of 5 seconds, then the impulse created will be –

Question 8:

A projectile is thrown from a point in a horizontal place such that its horizontal and vertical velocity component are 9.8 m/s and 19.6 m/s respectively. Calculate its horizontal range -

Question 9:

A body starts from the origin with an acceleration of 6 m/s2 along the x-axis and 8 m/s2 along the y-axis. Its distance from the origin after 4 seconds will be- 

Question 10:

The maximum horizontal range of a projectile is 400 m. What should be the maximum height attained by it?

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