Question

A ball of 0.5 kg collided with wall at 30° and bounced back elastically. The speed of ball was 12 m/s. The contact remained for 1 sec. What is the force applied by wall on ball?

• A. $12\sqrt 3\ N$
• B. $6\sqrt 3\ N$
• C. $3\sqrt 3\ N$
• D. $\sqrt 3\ N$

Answer 1

Answer: (B)

$6\sqrt 3\ N$

Answer 2

The correct option is (B): $6\sqrt 3\ N$.