Civil Engineering - Applied Mechanics - Discussion

Discussion Forum : Applied Mechanics - Section 2 (Q.No. 12)
12.
A ball moving with a velocity of 5 m/sec impinges a fixed plane at an angle of 45° and its direction after impact is equally inclined to the line of impact. If the coefficient of restitution is 0.5, the velocity of the ball after impact will be
0.5 m/sec
1.5 m/sec
2.5 m/sec
3.5 m/sec
4.5 m/sec.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
6 comments Page 1 of 1.

SAI said:   4 years ago
What if it is 60 degrees? Anyone explain, please.

Aashish said:   7 years ago
If only one object/body exist then use,

e=v/u.
0.5=v/5,
v=0.5*5=2.5 m/s.

Akki said:   7 years ago
Velocity of ball=5 m/ sec x coefficient of restitution = 0.5,
Velocity after impact is = 5 X 0.5,
= 2.5.

Chandan said:   7 years ago
Velocity is reduced by Half of initial.

Xyz said:   8 years ago
Here, the Coefficient of restitution = (v2-v1)/(u1-u2).

Faisal said:   9 years ago
Please explain the solution.

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