Question

when you lift up an object ,two objects act on it. Identify these forces. Which one of the two does negative work identity why​

Answer 1

Answer:

When we lift up an object the mechanical force of muscle(muscle force) and gravitational force from the above of the object act simulataneously.

While lifting a body the work done by gravity will be -ve because for lifting an object we must oppose the gravitational force.

Explanation:

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