Homework Help: physics

Posted by Leewillikers on Wednesday, February 6, 2013 at 2:30am.

An 9000 test car travels 40.5 before stopping from an initial speed of 25.7 on dry horizontal pavement with its wheels locked.

a)Make a free-body diagram of this car while it is slowing down.

b) What external force causes it to slow down?

c)Assuming constant acceleration, find the magnitude of the force in part A.

physics - drwls, Wednesday, February 6, 2013 at 3:14am
Your numbers require dimensions. That is one of the first things you should have learned.

With wheels locked, you should have a pretty good idea of the dominant decelerating force. There are going to be tire skid marks.

Answer this Question

Related Questions

Physics - An 11,000 N test car travels 44.5 m before stopping from an initial ...
Physics - A 1500 kg automobile travels at a speed of 105 km/h along a straight ...
physics - A 1500 kg automobile travels at a speed of 105 km/h along a straight ...
physics - A car travels along a roadwith a speed of v=25 m/s (about 50 mi/h). ...
physics - a) Find the maximum rate of deceleration of a car on a dry, level road...
College Math - Use the functions to find the stopping distance on wet pavement ...
physics - When a car is traveling at 21 m/s on level ground, the stopping ...
math - If a car is speeding down a road at 40 (mph), how long is the stopping ...
Physics - A coefficient of kinetic friction, k , is needed to stop a car in a ...
physics - According to recent test data, an automobile travels 0.250 mi in 19.9 ...

For Further Reading

First Name:
School Subject:
Answer: