1.

g ball moving with a certain speed (v) strikes a hard wall at an angle 30 with the wal. It is reflectedith the same speed and at the same angle. The ball is in contact with the wall for 0.25 s. if the average forceacting on the wall is 24 N, then the speed (v) is30°(a) 12 m/s(b) 15 m/s(c) 8 m/s(d) 10 m/s0°where t27. Velocity of a particle of mass m kg varies with time t according to the equation v (2ti -4j)m/s,is in sęcond. The impulse imparted to the particle in the time interval 0 s t š 2s is 8i kg m's. Find the

Answer»


Discussion

No Comment Found

Related InterviewSolutions