physics

posted by .

why does a car nose up when accelerating and nose down when braking?

which will have the greater acceleration rolling down an incline- a bowling ball or a volleyball?

  • physics -

    The bowling ball and the volleyball will have the same acceleration.

    I'm not exactly sure about the car thing, but it's probably because the front meets the most air resistance, pushing it down while accelerating, and when it brakes, the air resistance in the front is reduced while inertia keeps the car's end flying forward... the reduced air resistance and forward motion of the car's end lifts the front. I don't know a more technical explanation, if my original is true!

    I hope that helps, at least.

  • physics -

    1)consider the the torque on the car caused by the rear wheels. Remember Newtons third law?

    2) The volleyball will get to the bottom fastest.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    A 8.5-kg bowling ball is rolling down the alley with a velocity of 3.5 m/s. For each impulse, a and b, as shown below, find the resulting speed and direction of motion of the bowling ball.
  2. physics

    A ball rolls up a ramp and then back down again. The ramp is oriented so that the ball is rolling to the right as it rolls up the ramp. Assume that positive v and a vectors point to the right. Which statement is true about the ball's …
  3. physics

    A spherical bowling ball with mass m = 4.1 kg and radius R = 0.116 m is thrown down the lane with an initial speed of v = 8.9 m/s. The coefficient of kinetic friction between the sliding ball and the ground is ¦Ì = 0.34. Once the …
  4. Physics

    A spherical bowling ball with mass m = 3.2 kg and radius R = 0.107 m is thrown down the lane with an initial speed of v = 8.6 m/s. The coefficient of kinetic friction between the sliding ball and the ground is μ = 0.34. Once the …
  5. Physics

    A 4.0 kg bowling ball rolling at a velocity of 11m/s down the bowling lane makes a head on collision with a 2.5 kg bowling pin initially at rest. After the collision, the pink has a velocity of 13.54m/s down the bowling lane. What …
  6. Science

    A pendulum is made with a bowling ball as the bob and a wire attached to the ceiling, as shown in the illustration below. The person in the illustration pulls the bowling ball back until it touches his nose, then releases the bowling …
  7. Science

    A pendulum is made with a bowling ball as the bob and a wire attached to the ceiling, as shown in the illustration below. The person in the illustration pulls the bowling ball back until it touches his nose, then releases the bowling …
  8. Science

    A pendulum is made with a bowling ball as the bob and a wire attached to the ceiling, as shown in the illustration below. The person in the illustration pulls the bowling ball back until it touches his nose, then releases the bowling …
  9. Science

    A pendulum is made with a bowling ball as the bob and a wire attached to the ceiling, as shown in the illustration below. The person in the illustration pulls the bowling ball back until it touches his nose, then releases the bowling …
  10. Science

    A pendulum is made with a bowling ball as the bob and a wire attached to the ceiling, as shown in the illustration below. The person in the illustration pulls the bowling ball back until it touches his nose, then releases the bowling …

More Similar Questions