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HomePhysicsA particle of mass m moving with a velocity u makes an elastic one dimensional collision with a stationary particle of mass m establishing a contact with it for extremely small time T.  Their force of contact increases from zero to F0 linearly in time  T/4, remains constant for a further   T/2  time and decreases linearly from F0 to zero in further time  T/4  as shown. The magnitude possessed by F0 is

A particle of mass m moving with a velocity u makes an elastic one dimensional collision with a stationary particle of mass m establishing a contact with it for extremely small time T.  Their force of contact increases from zero to F0 linearly in time  T/4, remains constant for a further   T/2  time and decreases linearly from F0 to zero in further time  T/4  as shown. The magnitude possessed by F0 is

(a)        mu/T

(b)         2mu/T

(c)         4mu/3T

(d)           3mu/4T

Answer:  c

(9)

5/5 - (2 votes)

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12. An ideal gas is taken through the cycle A→ B → C → A, as shown in the figure. If the net heat supplied to the gas in the cycle is 5 J, the work done by the gas in the process C → A is

(a)      – 5 J (b)  – 10 J (c)   – 15 J (d)  – 20 J Answer-a (126)

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