In this example the acceleration is caused by a friction force. A counter attendant in a diner shoves a ketchup bottle with mass 0.20kg along a smooth, level lunch counter. The bottle leaves her hand with an initial velocity of 2.8m/s. As it slides, it slows down because of the horizontal friction force exerted on it by the countertop. The bottle slides a distance of 1.0m before coming to rest. What are the magnitude and direction of the friction force acting on it? Suppose the counter attendant pushes a 0.27 kgkg bottle with the same initial speed on a different countertop and it travels 1.8 mm before stopping. What is the magnitude of the friction force from this second counter? Express your answer with the appropriate units

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Q: F

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Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.