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QNEET-2023-Ph-337: NEET 2023 Physics - Class 11 NEET-2023-Ph-337 Solution: A 1 kg object strikes a wall with velocity $1\ {m s}^{-1}$ at …

A 1 kg object strikes a wall with velocity

1\ \text{m s}^{-1}

at an angle of

60^\circ

with the wall and reflects at the same angle. If it remains in contact with wall for 0.1 s then the force exerted on the wall is:

30\sqrt{3}\ \text{N}

Zero

10\sqrt{3}\ \text{N}

20\sqrt{3}\ \text{N}

Step-by-Step Verified Solution

F = | _ p _ _ t | = 2 m v sin _ _ t = 2 ( 1 ) ( 1 ) sin _ 60 _ 0.1 = 10 3 N