What energy must be imparted to a resting ball with a mass of 300 g so that it gains a speed of 20 m / s.
| August 13, 2021 | education
Initial data: m (mass of the resting ball) = 300 g (0.3 kg); V (the speed that the ball must acquire) = 20 m / s.
The energy that was given to the ball to acquire a given speed is determined by the formula: E = Ek = 0.5 * m * V2.
Calculation: E = 0.5 * 0.3 * 20 ^ 2 = 60 J.
Answer: For the ball to acquire a speed of 20 m / s, it needs to be imparted 60 J of energy.
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