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A block of wood of mass 14 kilograms is travelling at 12 metres per second on

a horizontal surface. It slows down to 8 metres per second over a distance of 50 metres. Determine

(a) the magnitude of the frictional force acting on the block. 

(b) the coefficient of kinetic friction between the block and the surface.

(g=10m/s^2)

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

An object of mass 5 kilograms is placed on a plane inclined at 36 degrees to the

horizontal. The object is moving down the plane with a velocity of 2 metres per second. The coefficient of kinetic friction between the box and the plank is 0.3.

Determine

(a) the frictional force. 

(b) acceleration of the box down the plane. 

(c) the distance the object travels down the plane in 8 seconds.

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An object of mass 5 kilograms is placed on a plane inclined at 36 degrees to the

horizontal. The object is moving down the plane with a velocity of 2 metres per second. The coefficient of kinetic friction between the box and the plank is 0.3.

Determine

(a) the frictional force. [3]

(b) acceleration of the box down the plane. [4]

(c) the distance the object travels down the plane in 8 seconds.

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An object of mass 10 kg is placed on a plane inclined at an angle of 30 degrees

to the horizontal. The coefficient of kinetic friction between the object and the

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(a) The acceleration of the block down the plane 

(b) The distance the object moves down the plane in the first five seconds.

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