Acrate is lifted vertically 1.5 m and then heldat rest. the crate has weight 100 n (i. e., it issupported by an upward force of 100 n).how much work was done in lifting thecrate from the ground to its final position? 1. more than 150 j2. 150 j3. a bit less than 150 j4. no work was done.5. none of these

option 1

Explanation:

given,                                    

Weight of crate = 100 N              

Crate is lifted up to height = 1.5 m

Work done =?                    

work = Force  x distance              

work = 100 N    x 1.5 m            

work = 150 J                                        

However, work would be more than the 150 J to lift the crate slightly higher to its final position.

The correct answer is option 1

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