Civil Engineering - Applied Mechanics - Discussion

Discussion Forum : Applied Mechanics - Section 1 (Q.No. 6)
6.
A projectile is thrown at an angle a to the horizontal with α velocity v. It will have the maximum centripetal acceleration
at the start
at the top of the trajectory
as it strikes the ground
else where.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
7 comments Page 1 of 1.

CPK said:   9 years ago
Centripetal acceleration = v^2/r.
Velocity is Zero at the top and increases towards the ground, reaches maximum before strikes it.
For max acceleration --> max velocity --> as it strikes the ground.

Sudarshan Tuwar said:   6 years ago
Projectile: Pv and Ph forces act simultaneously.

Any vehicle wheel has max acceleration at it starts only...
Therefore, it has max acceleration at the start only.
(1)

Parul said:   7 years ago
At the start of projectile where are must be less and are is inversely proportional to acceleration so at the start of the projectile the acceleration is maximum.
(1)

Mohamed said:   9 years ago
At launch, you have full velocity, full acceleration, but after launch you have air fiction lowering acceleration.
(1)

Yash said:   9 years ago
At the start, velocity becomes zero so acceleration also zero. Then why is the answer option A? Please explain.

Anonymoux said:   9 years ago
At the start. Why? Explain.

Tee e said:   4 years ago
Explain it briefly.

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