MEDIUM
9th CBSE
IMPORTANT
Earn 100

What do you understand by the term impulse of force?

Important Questions on Force and Laws of Motion

MEDIUM
9th CBSE
IMPORTANT

When a hockey ball is hit with a hockey stick, in which of the following cases will the impulsive force be the largest when time interval is

(a) 0.1 s,

(b) 1 s,

(c) 0.01 s?

EASY
9th CBSE
IMPORTANT
State the units of impulse of force in SI system ?
 
MEDIUM
9th CBSE
IMPORTANT
 Write an expression for impulse of force in terms of (i) force and time, (ii) change in momentum.
MEDIUM
9th CBSE
IMPORTANT
Why is the term impulse of force coined?
MEDIUM
9th CBSE
IMPORTANT
Why are we not hurt at all, while diving in a deep water tank from a height of 10 m? Explain.
 
MEDIUM
9th CBSE
IMPORTANT
Why are the long jump athletes made to jump in sand pits? Explain.
MEDIUM
9th CBSE
IMPORTANT
Why are the glass and porcelain articles packed in straw, foam or cardboard? 
MEDIUM
9th CBSE
IMPORTANT

Why is the body of cars, scooters, etc, is mounted on flat springs? Explain.