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schepotkina [342]
4 years ago
9

What is the velocity of the mass at a time t? you can work this out geometrically with the help of the hints, or by differentiat

ing the expression for r' (t) given in the introduction. (figure 2)
Physics
1 answer:
Alex777 [14]4 years ago
6 0
The angle between r (t = o) and r (t), is diresctly related to the direction pf the verlocity vector which is when t = 0, r(t = 0) = R(i^)θ = ωt
So, the speed of the mass at time (t0 is v(t) = ωR (v(t) in terms of ω and R)

the answer is v(t) = − Rωsin(ωt) + Rωcos(ωt)j^
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