Respuesta :
Answer:
3015 N
Explanation:
From Newton's second law, we know that;
F.t = mv
F = force on the ball= ?
m= mass of the ball
v= velocity
F= mv/t
F= 0.045 × 67/0.0010
F= 3.015/0.0010
F= 3015 N
The force exerted by the racket on the ball is 3015 N.
The force exerted by the racket on the ball is given in the formula below.
⇒ Formula:
- F = mΔv/t............... Equation 1
⇒ Where:
- F = force exerted by the racket
- m = mass of the birdy
- Δv = change in speed
- t = time.
From the question,
⇒ Given:
- m = 0.045 kg
- Δv = 67 m/s
- t = 0.0010 seconds.
⇒ Substitute these values into equation 1
- F = 0.045(67)/0.001
- F = 3015 N
Hence, The force exerted by the racket on the ball is 3015 N
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