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10 Nov 2019
Suppose you lift a 18kg box by a height of 1.0m. How much work doyou do in lifting the box?
Instead of lifting the box straight up, suppose you push it up a1.0 m-high ramp that makes a 30 degree angle with the horizontal,as shown in the figure. Being clever, you choose a ramp with nofriction. How much force is required to push the box straight upthe slope at a constant speed?
Suppose you lift a 18kg box by a height of 1.0m. How much work doyou do in lifting the box?
Instead of lifting the box straight up, suppose you push it up a1.0 m-high ramp that makes a 30 degree angle with the horizontal,as shown in the figure. Being clever, you choose a ramp with nofriction. How much force is required to push the box straight upthe slope at a constant speed?
Casey DurganLv2
6 Nov 2019
