A grind stone of 10 cm radius completes 50 rotations in 10 sec. What is the linear speed of a point on its rim
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50 rotations in 10s = 5 rotations per second
5 rotations per second = 5 × 2 π = 10 π rad/s
v = r ω
= 10 cm × 10^-2 m/cm × 10 π
= 3.14 m/s
Linear speed of a point on its rim is 3.14 m/s
5 rotations per second = 5 × 2 π = 10 π rad/s
v = r ω
= 10 cm × 10^-2 m/cm × 10 π
= 3.14 m/s
Linear speed of a point on its rim is 3.14 m/s
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