Question

a cycle together with its rider weight 100kg.How much work is needed to set it moving at 3m/s
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Answer 1

Answer:

As we may know,

Power = Force x Velocity

it can also be written as ,

power = Mass x Acceleration due to gravity x velocity

(Mass x Acceleration due to gravity) = Force

therefore ,

the formula will be,

Power = mg x velocity

given ,

velocity = 3 m/s

m = 100 kg

since the value of g isn't specified , we will take average value = 9.8 m/s²

therefore ,

Power = 100 x 9.8 x 3

. = 980 x 3

. = 2940 W

Therefore , Answer is 2940 W.

Answer 2

Answer:

300

Explanation:

work =100*3

work =300