a stone of mass 10kg falls from the highest of 20m then calculate the work done
To calculate the work done by the stone, we need to use the formula:
W = mgh
where W is the work done, m is the mass of the stone, g is the acceleration due to gravity (9.8 m/s^2) and h is the height from which the stone falls.
Substituting the given values, we get:
W = 10 kg x 9.8 m/s^2 x 20 m
W = 1960 J
Therefore, the work done by the stone when it falls from a height of 20 m is 1960 J.
To calculate the work done when a stone of mass 10kg falls from a height of 20m, we can use the formula:
Work Done = force x distance
1. First, let's calculate the force acting on the stone. The force acting on the stone is equal to its weight, which can be calculated using the formula:
Force = mass x gravity
The acceleration due to gravity is approximately 9.8 m/s^2.
So, Force = 10kg x 9.8 m/s^2 = 98 N (Newton)
2. Next, we need to calculate the distance the stone has fallen. In this case, the distance is given as 20m.
3. Now, we can substitute the values into the formula:
Work Done = Force x Distance
Work Done = 98 N x 20m = 1960 Joules (J)
Therefore, the work done when the stone of mass 10kg falls from a height of 20m is 1960 Joules.