Answer:
The work done will be
Explanation:
The work equation is given by:
Where:
F is the force due to gravity (weight = mg)
x is the length of the ramp (3 m)
Now, the force acting here is the component of weight in the ramp direction, so it will be:
Therefore, the work done will be:
I hope it helps you!
Answer:
Explanation
Length contraction, relativistic Law, for an object with a velocity v and a length at rest Lo :
We solve in order to find the length at rest: