Astudent wants to lift a 350 n bucket of water up from the bottom of a well using a wheel and axle. the wheel has a radius of 55 cm, and the axle has a radius of 15 cm. how much force will the student need to provide to the wheel to turn it and lift the bucket? 28.8 n 4242 n 1283 n 95.5 n

Answer is D - 95.5 N.

Explanation:

First calculate the ideal mechanical advantage (IMA) of the system:

IMA = R/r

IMA = 55/15

IMA = 11/3

This is the factor by which the applied force is reduced. This is how you get a mechanical advantage - you exert less force to accomplish the same thing. In this case:

350 / (11/3) = 95.5 N

answer would be d.) i hope this

explanation:

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.