Question

1) what is the magnitude of the torque exerted by the force F4 on the gate.

2) what is the magnitude of the torque exerted by the force F1 on the gate.

3) what is the magnetude of the torque exerted by the force F2 on the gate.

tatus: ad del torque ejercido por la fuerza F2 en la puerta? F=20N FĘ20N FF20N hinge door Ez20N 45° 300 389 F=20N -5 meters 1 meter it to save and submit Click

(1,2,3 using the first photo. )

4) A 4.0 radius grinding stone initially rotates with an angular velocity of 8.0 rad/s. The angular velocity is then increased to 12 rad/s for the next 4.0 seconds. Suppose the anguoar acceleration is constant. How many revolutions does the stone rotate during the 4.0 second interval?

Answer 1

27 A A im .. Torque = Fq X AO Sino = 20 X 1 x Sir 30' lo N-m. 24 д Fi am O Tanque = F, X Aox sim 0° o 31 TF2 300 At 1 m 300 Tanque B F2 X Aox tan 30° = 20 XI x 3 or 11.547 N-m. al ولما - ر لها angular acceleration = x= it 12- 8 4 2 1 red/s² O= wit + bxt² = 8x4+1x 1x 42 40 red. 40 rad :. no. of renatution = 6.366 ar rad