How to keep the pole motionless in a horizontal position

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Reference no: EM138017

Q1. A 19 kg box slides 4.0 {rm m} down the frictionless ramp shown in the figure , then collides with a spring whose spring constant is 160 N/m.At what compression of the spring does the box have its maximum speed?

Q2. You're carrying a 3.6-m-long, 25kg pole to a construction site when you decide to stop for a rest. You place one end of the pole on a fence post and hold the other end of the pole 35cm from its tip.

How much force must you exert to keep the pole motionless in a horizontal position?

Reference no: EM138017

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