Physics

posted by .

For parts A-C:
/^Vo | 2M | velocity into pg.
->R )2m ) ------
top view rear view

A car of mass, 2m, is going around a turn at a constant radius, R, with velocity, v0. The turn is not banked – it is a flat surface. Assume the car and the road are on Earth’s surface.

a) Is the friction that holds the car on the road around the turn static or kinetic? Explain your answer.



b) Find the minimum coefficient of friction needed for the car to make the turn in terms of v0, R, g, and any other variables or constants that are necessary for the expression.




c) Find the kinetic energy of the car in terms of m, v0, and any constants.

For parts D-F:
}
{
}
-----
| M |
-----
^
| Vo
------
| 2m |
------
d) The car hits an icy patch and careens off the turn in a straight line. It maintains its velocity, v0, until it hits a block of mass, m, attached to a massless spring with spring constant, k. The car has a perfectly inelastic collision with the block attached to the spring. Find the velocity, v2, of the combined car and block immediately after the collision takes place in terms of m, v0, and any needed constants.




e) Determine the distance that the spring compresses after the collision in terms of m, k, v0, and any necessary constants.






f) Find the time for the spring to return to its original position the first time after it compresses and starts to stretch in terms of m, k, and any other necessary variables or constants.



What happens to your answer in part f if the car has a mass of 11m instead?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    Lucky you have been commissioned to design a Bobsled Run for the new theme park Walrus of Fun going up in Anchorage, Alaska. You get a maximum of 1500 meters of track to work with. Except on the turns the coefficient of kinetic friction …
  2. physics

    At t = 0, an automobile traveling north begins to make a turn. It follows one-quarter of the arc of a circle of radius 9.3 m until, at t = 1.38 s, it is traveling east. The car does not alter its speed during the turn. (a) Find the …
  3. Physics

    A car of mass = 1200 traveling at 60.0 enters a banked turn covered with ice. The road is banked at an angle , and there is no friction between the road and the car's tires.What is the radius of the turn if = 20.0 (assuming the car …
  4. Physics

    A car with fuzzy dice hanging from the rear view mirror by a single string drives along at a constant 25.0 m/s. a) If the dice have a mass of 0.030 kg, what is the angle of the string (relative to vertical)?
  5. Physics

    At t = 0, an automobile traveling north begins to make a turn. It follows one-quarter of the arc of a circle of radius 10.1 m until, at t = 1.52 s, it is traveling east. The car does not alter its speed during the turn. (a) Find the …
  6. Physics

    For this problem, you are allowed to consult with other members of the class, but not with faculty and not with anyone outside the course. Simplify all your expressions. A car of mass, 2m, is going around a turn at a constant radius, …
  7. physics

    A car is traveling around a circular banked road without friction which is inclined at 72 degrees which has a vertical height of 25 meters. When the car is traveling at 16 m/s around the road, it is moving at the bottom on the incline …
  8. physics

    At t = 0, an automobile traveling north begins to make a turn. It follows one-quarter of the arc of a circle of radius 10.1 m until, at t = 1.64 s, it is traveling east. The car does not alter its speed during the turn. (a) Find the …
  9. Physics

    A 500 kg car experiences a frictional force of 3208 N while turning, if the car is traveling around a turn of radius 16 m what is the velocity of the car?
  10. Physics

    A 500 kg car experiences a frictional force of 3080 N while turning, if the car is traveling around a turn of radius 17 m what is the velocity of the car?

More Similar Questions