Asked by Brad
A ball acquires a horizontal speed of 12m/sec when a force is applied for a distance of .50m. If the ball has a mass of 1.0kg what is the force applied? ANSWER: 144N....I'm not sure what formulas I'd apply.
It takes a force of 109N to life a stone straight up. This force gives the stone an acceleration of 12.0m/s2. Calculate the mass of the stone. ANSWER: 5.00kg....Same issue here.
It takes a force of 109N to life a stone straight up. This force gives the stone an acceleration of 12.0m/s2. Calculate the mass of the stone. ANSWER: 5.00kg....Same issue here.
Answers
Answered by
Damon
work done = kinetic energy gained
F * .5 = (1/2)(1)(144)
F = 144 N
force up = 109
weight down = m g = 9.81 m
F = m a
(109-9.81 m)= 12 m
109 = 21.81 m
m = 109/21.81 Kg
F * .5 = (1/2)(1)(144)
F = 144 N
force up = 109
weight down = m g = 9.81 m
F = m a
(109-9.81 m)= 12 m
109 = 21.81 m
m = 109/21.81 Kg
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