A block of mass 9.8 kg is resting on a ramp that is inclined 11.9 degrees...

Question

Question

A block of mass 9.8 kg is resting on a ramp that is inclined 11.9 degrees relative to horizontal. The ramp is so smooth, the block can slide without any friction opposing its motion. Include the appropriate SI units with your answers below.
a) How hard do you have to push on the block (i.e., how much force is needed), along the direction of the incline, just to hold it motionless on the ramp?
b) How hard do you have to push on the block to move it up the plane with a constant speed of 6.8 m/s, if you push on the block directly up the incline?
c) How hard do you have to push on the block to move it up the plane with an acceleration of 5.6 m/s², if you push on the block directly up the incline?
d) How hard do you have to push on the block to hold it motionless, if you push on the block horizontally (i.e., perpendicular to gravity's pull)?

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Answer 1

Answer #1

Answer 2

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