What angle is formed by the sun, earth, and moon during an eclipse?
1 answer:
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Answer:
1027.2 m
Explanation:
t = Time taken
u = Initial velocity
v = Final velocity
s = Displacement
a = Acceleration due to gravity = 32.2 ft/s
The height the tomato would fall is 450+577.2 = 1027.2 m
The work done by each motor is c)
Explanation:
The work done when lifting an object is equal to the change in gravitational potential energy of the object:
where
m is the mass of the object
g is the acceleration of gravity
is the change in height of the object
In this problem, each motor is lifting one elevator, so the mass of each elevator is
m = 1000 kg
and we have
Therefore, the work done by each motor is
Learn more about work:
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