Question

An 65-kg baseball player slides into second base. The coefficient of kinetic friction between the player and the ground is 0.49. (a) What is the magnitude of the frictional force?

Answer 1

Step-by-step explanation:

(a) To calculate the magnitude of the frictional force, we can use the equation:

Frictional force = coefficient of kinetic friction * normal force

The normal force is equal to the weight of the baseball player, which can be calculated using the formula:

Weight = mass * acceleration due to gravity

Given that the mass of the baseball player is 65 kg and the acceleration due to gravity is approximately 9.8 m/s^2, we can calculate the weight as follows:

Weight = 65 kg * 9.8 m/s^2

Weight = 637 N

Now, we can substitute the values into the equation for frictional force:

Frictional force = 0.49 * 637 N

Frictional force ≈ 312.13 N

Therefore, the magnitude of the frictional force between the baseball player and the ground is approximately 312.13 N.