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djverab [1.8K]
3 years ago
10

If 2.0j of work is done in raising 180g apple, how far was it lifted?

Physics
1 answer:
Nikitich [7]3 years ago
4 0

Work = (force)x(distance)

Since we're lifting, the 'force' is the weight of the apple.

Weight = (mass)x(gravity)

Weight = (0.180 kg)x(9.8 m/s^2)

Weight = 1.764 Newtons

2.0 J = (1.764 N) x (distance)

Distance = 2.0J / 1.764N

Distance = 1.13 meters

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3 years ago
A small block with mass 0.200 kg is released from rest at the top of a frictionless incline. The block travels a distance 0.796
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Answer:

distance travelled by the block is 0.796 m

{ acceleration is independent of mass, so both the masses travel equal distance in 2 s }

Explanation:

Given that;

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If the 0.400 kg block is released from rest at the top of the incline, how far down the incline does it travel in 2.00 s?

Now, using the second equation of motion;

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as the object started from rest, u=0

so, we substitute

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now, average velocity is given as;

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V_{avg} = ( 0.796 m/s  + 0 ) / 2

now, distance as the block moves in 2s will be;

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