Computing torque Answer the following questions about torque. 42. Let r = O P ⇀ = i − j + 2 k . A force F = 〈10, 10, 0〉 is applied at P. Find the torque about O that is produced.
Computing torque Answer the following questions about torque. 42. Let r = O P ⇀ = i − j + 2 k . A force F = 〈10, 10, 0〉 is applied at P. Find the torque about O that is produced.
Determine the magnitude of the resultant force and its direction measured from
the positive x axis.
30 Ib
20 b
10
0
45
Bicycle brakes A set of caliper brakes exerts a force on the rim of a bicycle wheel that creates a frictional force F of 40 N perpendicular to the radius of the wheel (see figure). Assuming the wheel has a radius of 33 cm, find the magnitude and direction of the torque about the axle of the wheel.
A force acts on an object, causing it to move parallel to the force. The graph in the figure shows this force as a function of the position of the object. How much work does the force do as the object moves from 0 m to 4 m?
Group of answer choices
0 J
30 J
70 J
40 J
20 J
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