Tom and Jerry both push on the 2.90-m-diameter merry-go-round shown in ( Figure

Question

Tom and Jerry both push on the 2.90-m-diameter merry-go-round shown in (Figure 1) . Tom pushes with a force of 51.0N and Jerry pushes with a force of 35.5N .

Part A

What is the net torque on the merry-go-round?

Part B

What is the net torque if Jerry reverses the direction that he pushes by 180? without changing the magnitude of his force?

Tom and Jerry both push on the 2.90-m-diameter merry-go-round shown in (Figure 1) . Tom pushes with a force of 51.0N and Jerry pushes with a force of 35.5N .

Part A

What is the net torque on the merry-go-round?

Part B

What is the net torque if Jerry reverses the direction that he pushes by 180? without changing the magnitude of his force?

Tom and Jerry both push on the 2.90-m-diameter merry-go-round shown in (Figure 1) . Tom pushes with a force of 51.0N and Jerry pushes with a force of 35.5N . What is the net torque on the merry-go-round? Part B What is the net torque if Jerry reverses the direction that he pushes by 180? without changing the magnitude of his force?

Explanation / Answer

torque = r x F = rFsin@

net torque = 1.45 x 51 x sin60 - 1.45 x 35.5 x sin80 = 13.35 Nm

B) net torque = 1.45 x 51 x sin60 + 1.45 x 35.5 x sin80 = 114.74 Nm

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