A forward horizontal force of 12n is used to pull a crate across a horizontal floor at a constant velocity. If the crate weighs
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Answer:
(a). The ball's centripetal acceleration is
(b). The magnitude of the net force is 232.9 N.
Explanation:
Given that,
Mass of baseball = 144 g
Speed = 81 mph = 36.2 m/s
Distance = 81 cm
(a). We need top calculate the ball's centripetal acceleration just before it is released
Using formula of centripetal acceleration
Where, v = speed
r = radius
Put the value into the formula
(b). We need to calculate the magnitude of the net force that is acting on the ball just before it is released
Using formula of force
Put the value into the formula
Hence, (a). The ball's centripetal acceleration is
(b). The magnitude of the net force is 232.9 N.