What will the work done be when a bullet of mass 10g at rest is accelerated to a velocity of 20ms in 10 sec?calculate the power developed by the bullet during 10se.
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Answered by
4
Answer:
W = 2000 j
P = 200 Watt
Explanation:
m = 10 g , v = 20 m/s , u = 0 m/s , t = 10s
a = ? , s = ?
1st we find (a) & (s)
v = u + at | v^2 - u^2 = 2as
20 = 0 + 10a | 20^2 - 0^2 = 2 × 2 ×s
a = 2 m/s^2 | s = 100 m
Then we find (W) & (P)
W = F × S | P = E / t
W = ma × s | P = W / t
W = 10×2×100 | P = 2000 / 10
W = 2000 | P = 200 W
Answered by
2
Answer:
Work done (W) = 2 Joules and Power (P) = 0.2 Watt
Explanation:
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