Applied Mechanics and Graphic Statics
A particle is dropped from the top of a tower 60 m high and another is projected upwards from the foot of the tower to meet the first particle at a height of 15.9 m. The velocity of projection of the second particle is

20 m/sec
18 m/sec
16 m/sec
22 m/sec

ANSWER DOWNLOAD EXAMIANS APP

Applied Mechanics and Graphic Statics
‘u₁’ and ‘u₂’ are the velocities of approach of two moving bodies in the same direction and their corresponding velocities of separation are ‘v₁’ and ‘v₂’. As per Newton's law of collision of elastic bodies, the coefficient of restitution (e) is given by

e = v₂ - v₁/u₁ - u₂
e = u₂ - u₁/v₁ - v₂
e = v₁ - v₂/u₂ - u₁
e = v₁ - v₂/u₂ + u₁

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Applied Mechanics and Graphic Statics