Class 11

Physics

Mechanics

Laws Of Motion

A mass 'm' is supported by a massless string wound around a uniform hollow cylinder of mass m and radius R. If the string does not slip on the cylinder, with what acceleration will the mass fall or release?

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A 5000 kg rocket is set for vertical firing. The exhaust speed is $800ms_{−1}$.To give an intial upward acceleration of 20 $m/s_{2}$ , the amount of gas ejected per second to supply the needed thrust will be ($g=10ms_{−2}$)

Using constraint method find the relation between of $a_{1}$ and $a_{2}$.

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