Question

Step wuse answers only, other will be reported.​

Answer 1

F = 5 N

S = 0.4 m

Gain in kinetic energy = W = 1 J = 1 N m

= F cos∅

= (F cos∅) S

= 0.4 (F cos∅)

F cos∅ = 1 J/0.4 m = 2.5 N

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Answer 2

F = 5 N

S = 0.4 m

Gain in kinetic energy = W = 1 J = 1 N m

= F cos∅

= (F cos∅) S

= 0.4 (F cos∅)

F cos∅ = 1 J/0.4 m = 2.5 N

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