11(a) Find the torque on the door. (b) What is the pe What is the net...

Question

Question

science physics

Answer 1

Answer #1

a) Torque $\tau$ = r F sin $\Theta$

$\tau$ = 2 * 3 * 10^2 * sin 40

$\tau$ = 385.67 Nm

b) Torque due to 40 N = 1.2 * 40 = 48 Nm in counter clockwise direction

Torque due to 25 N = -1.2 * 25 = -30 Nm in clockwise direction

Net torque = 48 - 30 = 18 Nm

Answer 2

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