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a truck is carry a box of mass m=50kg on...

a truck is carry a box of mass `m=50kg` on its flat horizontal rough surface with coefficient of friction `mu=0.3` . It is crossing a circular track of radius 27m. What is the maximum speed of the truck so thet the box does not slide from the truck while moving on the circular path?

A

`18km//hr`

B

`36km//hr`

C

`32.4km//hr`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
F.B.D. of the particle in truck level.
Here `(mv^(2))/(R)=mumg`
`v^(2)=mumgR=0.3xx50xx10xx27`
`v45sqrt(2)m//s` .
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