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A particle moves with a velocity vec(v)=...

A particle moves with a velocity `vec(v)=5hat(i)-3hat(j)+6hat(k) " "ms^(-1)` under the influence of a constant force `vec(f)= 10hat(i)+10hat(j)+20hat(k)N`. The instantanteous power applied to the particle is

A

`200Js^(-1)`

B

`40Js^(-1)`

C

`140Js^(-1)`

D

`170Js^(-1)`

Text Solution

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The correct Answer is:
B
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