The work done in taking a body from the floor to the to of table depends upon

Options

A. the speed of the particle
B. the actual path taken
C. the time taken in this work
D. the heigh of the table

Answer

D

Explanation

The total work done in sliding a block up a rough inclined plane (W ) is given by
W =Work done against gravity ( mgh ) `+` Work done against frictional force `( W_(f))`
`:.W = mgh + W_(f)` `:. W_(f) = W -mgh`
`:. W _(f) = 300- 2 xx 10 xx 10 = 100J`