A wooden block weighing 7 n is at rest on top of a wooden, Ask an Expert

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Q1. A wooden block weighing 7 N is at rest on top of a wooden desk. The coefficient of static friction between the block and the desk is 0.41. Find out the minimum horizontal force required to move the block if the following occurs.

(a) The block is being pressed into the surface with a 4 N force.

(b) The block is partially supported by a vertical string under the tension of 4 N.

Q2. A car of mass 977 kg coasts on a level road starting with the initial speed of 13.80 m/s and coming to rest 14.7 s later. Find the frictional force acting on the car.

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Category:- Physics
Reference No.:- M9170431

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