Force causes an object to move in the same direction that the force is applied. Friction reduces efficiency<span> when two surfaces slide past each other, also </span>friction<span> resists their motion, and in </span>machines<span>, some input work is always used to overcome </span>friction<span>.
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When object travels with uniform velocity, no force acts on it. hence , yes.
True, most likely because of the postion of the earth- maybe? I dunno
Answer:
D. 100 J
Explanation:
Given
Mass (m) = 2 kg
Height (h) = 5 m
Acceleration due to gravity (g) = 10 m/s²
Now
Work done(W)
= m * g * h
= 2 * 10 * 5
= 100 Joule
Hope it will help :)❤
Hi there!
Recall the equation for work given a potential difference and charge:
W = Work (J)
q = charge (C)
V = Potential difference (V)
The work is equivalent to the change in KINETIC ENERGY, and only depends on the particle's charge and the potential difference that it experiences. Mass has no impact on this.
Thus:
This is equivalent to: