Question

19. 5000 balls each weighing 3 gm, strike one square cm of
area per second with a velocity 200 m/s in perpendicular
direction and rebound, with the same velocity. The value
of pressure on the surface will be
a. 6 x 10-7 N/m2 b. 6* 10’N/m2
c. 10' N/m2
d. 6 N/m?​

Answer 1

Answer:

15x1o∧5N/m²

Explanation:

pressure = force/area = 15000x10∧-3x10N ÷ 10∧-4m² = 15x1o∧5N/m²