A block of mass 2.60 kg is pushed2.60 m along a frictionless horizontaltable by

Question

A block of mass 2.60 kg is pushed2.60 m along a frictionless horizontaltable by a constant 16.0 N force directed 22.0° below thehorizontal. (a) Determine the work done on the block by theapplied force.
1 J

(b) Determine the work done on the block by the normal forceexerted by the table.
2 J

(c) Determine the work done on the block by the gravitationalforce.
3 J

(d) Determine the total work done on the block.
4 J (a) Determine the work done on the block by theapplied force.
1 J

(b) Determine the work done on the block by the normal forceexerted by the table.
2 J

(c) Determine the work done on the block by the gravitationalforce.
3 J

(d) Determine the total work done on the block.
4 J

Explanation / Answer

a) the work done on the block by the applied force. : W1 = F*d*cos(22) = 38.57 J b) the work done on the block by the normal force exerted by thetable : W2 = N*d*cos(90) = 0 J c) the work done on the block by the gravitational force. : W3 = P*d*cos(90) = 0 J d) the total work done on the block.: W =W1 +W2+W3 =W1 = 38.57 J

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