Answer:
Height, h = 13.02 meters
Explanation:
It is given that,
Spring constant of the spring, k = 750 N/m
It is compressed by 35 cm relative to its unstained length, x = 35 cm = 0.35 m
Mass of the object, m = 0.36 kg
When the spring is released, the mass is launched vertically in the air. We need to find the height attained by the mass at this position. On applying the conservation of energy as :
Energy stored in the spring = change on potential energy
h = 13.02 meters
So, the mass will reach a height of 13.02 meters. Hence, this is the required solution.
According to Newton's second law of motion, Force is mass times the acceleration of the object.
It would be: F = m*a
Hope this helps!
Work = force x displacement
work = 800 N x 2 m
work = 1600 Joules
Answer:C
Explanation:
Given
weight of object is equal to weight of object
Suppose weight of Planck is W
suppose weight is at distance of x cm from wedge
balancing Torque
i.e. at a distance of 0.25L from the Left end