A football player, hitting a ball weighing 700 g, informs him of a speed of 15 m / s.
| May 6, 2021 | education
A football player, hitting a ball weighing 700 g, informs him of a speed of 15 m / s. Assuming the duration of the blow to be 0.02 s, determine the force of the blow.
The force of the player’s blow is calculated from the ratio:
F * t = m * V, where F is the force of impact on the ball (N), t is the duration of the impact on the ball (t = 0.02 s), m is the mass of the ball (m = 700 g = 0.7 kg), V is the speed of the ball (V = 15 m / s).
Let us express and calculate the force of the kick of a football player on the ball:
F = m * V / t = 0.7 * 15 / 0.02 = 525 N.
Answer: The force of the kick of a football player on the ball is 525 N.
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