0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Question

A body is being raised to a height $$h$$ from the surface of earth. What is the sign of work done by:
Gravitational force?

Solution
Verified by Toppr

To raised a body up to height $$h$$ a person will apply the force upward in the direction of displacement.
Gravitational force is always downward, but displacement is upward here. So $$\theta =180^o$$
$$\therefore WD=Fds \cos 180^o =-Fds$$
Hence, $$WD$$ by gravitational force is negative.

Was this answer helpful?
0
Similar Questions
Q1
1): A body is being raised to a height h from the surface of earth. What is the sign of work done by applied force?

2)A body is being raised to a height ℎ from the surface of earth. What is the sign of work done by gravitational force?
View Solution
Q2
A body is being raised to a height h from the surface of earth. What is the sign of work done by applied force and gravitational force respectively?
View Solution
Q3
A body is being raised to a height h from the surface of earth.What is the sign of work done by
(a)applied force
(b)Gravitational force
View Solution
Q4
The work done in slowly lifting a body from earth's surface to a height R (radius of earth) is equal to two times the work done in lifting the same body from earth's surface to a height h. Here h is equal to
View Solution
Q5
The work done to raise a mass m from the surface of the earth to a height h which is equal to the radius of the earth
View Solution