Question

(3)
N
(4)
NI
N.
A 1 kg particle strikes a wall with velocity 1 m/s at
an angle of 30° with the normal to the wall and
reflects at the same angle. If it remain in contact
with wall for 0.1 s, then the force is :-
(1)0 (2) 10√3N (3) 30√3 N (4),40√3​

Answer 1

Answer:10√3N

Explanation:∆p=-2mvcostheta

Force=∆p/∆t

=-10√3

|F|=10√3