Question

A particle of mass 20 g moves along a circle with a constant tangential acceleration equal to 2 m/s2. What is the magnitude of its velocity when particle moved through a distance 4 m, after starting from rest?​

Answer 1

Answer:

HOOE IT HELPS YOU...

Explanation:

r=π20

r=π20In two revolution , distance is s=2×2πr=80m

r=π20In two revolution , distance is s=2×2πr=80mNow, v2=2as for zero initial speed.

r=π20In two revolution , distance is s=2×2πr=80mNow, v2=2as for zero initial speed.⟹a=2sv2=2×8080×80

r=π20In two revolution , distance is s=2×2πr=80mNow, v2=2as for zero initial speed.⟹a=2sv2=2×8080×80⟹a=40m/s2