Question

displayed as you push the crate (the crate must be moving for it to show the kinetic friction). At the same time you will begin a stopwatch and time how long it takes for the box to reach 40 m/s. Using this time and the change in speed, determine the acceleration of your object. Show your calculation below. a= (40-0) | 18.34 acceleration = 2.18 misa Using your applied force and the mass and acceleration, compute the force of kinetic friction. Compare to the kinetic friction displayed in the program. Show your work below. Friction Force=188 Having the kinetic friction and knowing fx - umg, determine the coefficient of kinetic friction. Show your work below. 8

Answer 1

To determine the acceleration of the object, we can use the equation a = (final velocity - initial velocity) / time. In this case, the final velocity is 40 m/s, the initial velocity is 0 m/s, and the time is 18.34 seconds. Plugging these values into the equation, we get:

a = (40 - 0) / 18.34
a ≈ 2.18 m/s^2

To compute the force of kinetic friction, we can use the equation Friction Force = mass * acceleration. However, the given information does not include the mass of the object. Therefore, we cannot calculate the force of kinetic friction.

To determine the coefficient of kinetic friction, we need the value of the normal force (N). The equation for kinetic friction is given by Friction Force = coefficient of kinetic friction * N. Since the normal force is not provided, we cannot calculate the coefficient of kinetic friction.

In summary:
1. The acceleration of the object is approximately 2.18 m/s^2.
2. The force of kinetic friction cannot be calculated without the mass of the object.
3. The coefficient of kinetic friction cannot be determined without the value of the normal force.

Please let me know if there is anything else I can help you with!