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# A body of mass 5 kg is placed at the origin, and can move only on the x-axis. A force of 10 N isacting on it in a direction making an angle of o 60 with the x-axis and displaces it along the xaxisby 4 metres. The work done by the force is

Arya Rane
13 Points
one year ago
Theta = 60 °
Force = 10 Newton
Displacement = 4 meter
Work done = Force × Displacement × Cos / theta
W = 10 × 4 × 1 / 2
W = 40 × 1 / 2
W = 20 Joules
Vikas TU
14149 Points
one year ago
Dear student
One thing is not clear in the above explanation is , Here we have taken component of displacement in x direction ,
It is xCosQ
Q = 60 degree
So
W = FXCosQ
= 20 Jule
Hope ths will help
Good Luck