[ T ] A boy applies the brakes on a bicycle by applying a downward force of 20 lb on the pedal when the 6-in . crank makes a 40° angle with the horizontal (see the following figure). Find the torque at point P . Express your answer in foot-pounds rounded to two decimal places.
[ T ] A boy applies the brakes on a bicycle by applying a downward force of 20 lb on the pedal when the 6-in . crank makes a 40° angle with the horizontal (see the following figure). Find the torque at point P . Express your answer in foot-pounds rounded to two decimal places.
[
T
]
A boy applies the brakes on a bicycle by applying a downward force of
20
lb
on the pedal when the
6-in
. crank makes a
40°
angle with the horizontal (see the following figure). Find the torque at point
P
. Express your answer in foot-pounds rounded to two decimal places.
Find the magnitude of the torque exerted by F on the bolt at P if PQ = 8 in. and F = 24 lb.
450
The magnitude of the torque exerted by F on the bolt at P is ft-lb.
(Do not round until the final answer. Then round to two decimal places as needed.)
Find the magnitude of the torque exerted by F on
the bolt at P if |PQ| = 6 in. and |F| = 28 lb.
P
450
The magnitude of the torque exerted by F on the bolt at P is
ft-lb.
(Do not round until the final answer. Then round to two decimal places as
needed.)
A variable force of 2x-2 pounds moves an object along a straight line when it is x feet from the origin. Calculate the work done (in ft-Ib)
in moving the object from x = 1 ft to x = 11 ft. (Round your answer to two decimal places.)
ft-lb
Using and Understanding Mathematics: A Quantitative Reasoning Approach (6th Edition)
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