A circular disc with a groove along its diameter

Asked by admin @ 16/08/2021 in Physics viewed by 329 People

1. A circular disc with a groove along its diameter is placed

horizontally. A block of mass 1kg is placed as shown. Theco-efficient of friction between the block and all surfaces ofgroove in contact is u=2/5. The disc has an acceleration of25 m/s. Find the acceleration of the block with respect todisc[IIT-JEE 2006](a) 10 m/s2(b) 5 m/s a=25m/s2(c) 20 m/s2(d) 1 m/s2cos =4/5 sino=3/5Ainclined plane making

Answered by admin @ 16/08/2021

Answer:

Answer :

A::B

Solution :

Applying pseudo force ma and resolving it.

Applying F net=mar

macosθ−(f1+f2)=mar

macosθ−μN1−μN2=mar

macosθ−μmasinθ−μmg=mar

⇒ar=acosθ−μasinθ−μg

=25×45−25×25×35−25×10=10m/s2

Explanation:

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