Question

رل

Find the work done when a 25 kg weight is ) lifted to
a vertical height of 2.0 m from the ground, (in) carried
to the same place by pushing it up an inclined plane
making an angle of 30° with the ground​

Answer 1

Explanation:

1) w= 490j

2) w = 424.34j

given : h=2m

m=25kg

g=9.8m/s 2

to find : work done in different cases

formula used w = mgh

1 ) w= mgh 25*2*9.8*cos30'

490*√3/2=424.34j

Answer 2

Answer:

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