You exert of force of 75 newtons on a rock. You push and you push, but you can't budge it. You are exhausted! How much work did
1 answer:
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Answer:
i - component of V is zero for any value of t i-e no motion in this direction
Explanation:
Since
r= i+3j+t k
==> V = =
=
and acceleration is given by taking derivative of velocity w.r.t t
==> a= =
=
so, V=0i+6tj+k
and
a = 0i+6j+k
i - component of V is zero for any value of t i-e no motion in this direction