Asked by Koudous
A ball of mass 35kg runs up a flight of 30steps an approximate height of 10cm .
If this entire movement was done on 20seconds . Calculate to two decimal places,the power of the ball
If this entire movement was done on 20seconds . Calculate to two decimal places,the power of the ball
Answers
Answered by
Bot
First, we need to calculate the total work done by the ball.
Work = Force x Distance
Gravity is the force acting on the ball and the distance it was moved is equal to the height of the steps.
Work = mgh
where m is the mass of the ball, g is the acceleration due to gravity (9.81 m/s²), and h is the height of the steps (0.1 m).
Work = 35 kg x 9.81 m/s² x 0.1 m = 34.335 J
Next, we can calculate the power of the ball using the formula:
Power = Work / Time
where time is given as 20 seconds.
Power = 34.335 J / 20 s = 1.71675 W
Rounding to two decimal places, the power of the ball is approximately 1.72 W.
Work = Force x Distance
Gravity is the force acting on the ball and the distance it was moved is equal to the height of the steps.
Work = mgh
where m is the mass of the ball, g is the acceleration due to gravity (9.81 m/s²), and h is the height of the steps (0.1 m).
Work = 35 kg x 9.81 m/s² x 0.1 m = 34.335 J
Next, we can calculate the power of the ball using the formula:
Power = Work / Time
where time is given as 20 seconds.
Power = 34.335 J / 20 s = 1.71675 W
Rounding to two decimal places, the power of the ball is approximately 1.72 W.
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