answer the 3rd plz. it's urgent
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x=5sin10t
dx/dt=50cos10t
y=5cos10t
dy/dt=-50sin10t
resultant velocity=√|(50cos10t)|^2+|-(50sin10t)|^2
= √2500(sin10t+cos10t)^2
=√2500(1)
=50
dx/dt=50cos10t
y=5cos10t
dy/dt=-50sin10t
resultant velocity=√|(50cos10t)|^2+|-(50sin10t)|^2
= √2500(sin10t+cos10t)^2
=√2500(1)
=50
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