3m 2. Compute the sum of the torques about point A. -60N -SON 70N 40N 3. Compute the sum of the torques about point A. -70N -60N 9 m 4. Compute the sum of the torques about point A. -90N -3ON 2m 40N 9m

I need help filling out the table of which forces are being applied, the y, and the torque

1. Calculate the torque about the z-axis pointing out of the page at the origin in the following figure given that F₁ = 2 N, F₂=9N, F3=4 N, F₁=5 N. Hint: Use the sign convention for torques, counter-clockwise rotation corresponds to a torque in the positive z-direction and clockwise rotation corresponds to a torque in the negative z-direction. Which forces produce clockwise rotations and which forces produce counter-clockwise rotations? While using the formula for cross-product AXB=ABsine, remember that is the angle between the tails of the vectors A and B. To determine e rearrange the vectors so that their tails coincide. Nm k net = tu~ 30° F₂ YA 2m 3 m V O 2 m F3 F4 20° ILL X

0.28 metres away

40. A ball swings around a pivot at a constant rate due to an applied force. If the applied force is increased by a factor of four in the direction of the pivot, the ball’s angular velocity willA. decrease by a factor of 2.B. increase by a factor of 2.C. decrease by a factor of 4.D. increase by a factor of 4.

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2. Given a displacement F = 4.0m 1 + 1.0m ĵ + 1.0m K, and a force F = 7.0N 1 +2.5N Ĵ- 5.0N K Find the torque.

9. In Figure 9-26 below, a crane is lifting a heavy concrete panel The force holding up the panel is F = 2.00 x 104 N. Torque is respect to O below. a) What is the direction of rotation? b) What is the torque? Fig. 9-26 Ans. a. Clockwise b. 1.20 x 105 N-m T=2.00 x 10 N -10.0 m- 53.0

31. Which of the following is true for angular motion? A uniform net torque always causes an increase in angular speed. A uniform net torque always changes the direction of the angular displacement vector. A uniform net torque always change the magnitude of the rotational inertia. A uniform net torque will always cause a change of angular momentum.

net Torque? what disection is the wheel moving? what is wheel movno 4ON 60 N MacBook Ain