Science

Starting from rest, a boulder rolls down a hill with constant acceleration and travels 3.00 during the first second.

How far does it travel during the second second?

How fast is it moving at the end of the first second?

How fast is it moving at the end of the second second?


If we use s=(1/2)a*t^2, t=1 and s=3 then a=6m/s^2
To answer this
How far does it travel during the second second?
Find the distance it would travel in 2s and subtract the distance it traveled in the first second.
For this
How fast is it moving at the end of the first second?
Use v=a*t Since you know a and t, just evaluate them in the formula.
...and finally
How fast is it moving at the end of the second second?
Use v=a*t with the a from above and t=2.


bunnys are nice

  1. 👍 0
  2. 👎 0
  3. 👁 968
  1. Diamond sonnier Mary sonnier

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    A ball rolls down a hill with a constant acceleration of 2.0 m/s2. If the ball starts from rest, (a) what is its velocity and the end of 4.0 s? (b) How far did the ball move?

  2. Physics

    What is the final velocity of a hoop that rolls without slipping down a 5.00-m-high hill, starting from rest?

  3. physics

    Cars A and B are racing each other along a straight path in following manner: Car A has head start and is a distance dA beyond starting line at t=0. The starting line is at x=o. Car A travels at constant speed vA. Car B starts at

  4. Physics

    A tennis ball, starting from rest, rolls down a hill. At the end of the hill the ball becomes airborne, leaving at an angle of 35° with respect to the ground. Treat the ball as a thin walled spherical shell (I=2/3 mr^2 )and

  1. Physics

    A 91 kg man stands on a spring scale in an elevator. Starting from rest, the eleva- tor ascends, attaining its maximum speed of 1.7 m/s in 1.07 s. It travels with this constant speed for the next 5 s, undergoes a uniform negative

  2. physics

    A 873-kg (1930-lb) dragster, starting from rest completes a 403.6-m (0.2523-mile) run in 4.935 s. If the car had a constant acceleration, what would be its acceleration and final velocity?

  3. physics

    According to recent test data, an automobile travels 0.250 mi in 19.9 s, starting from rest. The same car, when braking from 60.0 mi/h on dry pavement, stops in 146 ft. Assume constant acceleration in each part of the motion, but

  4. Physics-1

    A child sleds down a snow covered hill with a uniform acceleration. The slope of the hill is 38.5 m long. If the child starts at rest and reaches the bottom of the hill in 5.5 s, what is the child's final speed?

  1. Physics

    Starting from rest, a basketball rolls from the top of a hill to the bottom, reaching a translational speed of 3.83 m/s. Ignore frictional losses. (a) What is the height of the hill? I've tried to use the mgh=1/2mv^2. I think it's

  2. physics

    2. A baseball starts from rest and rolls 50.0 m down a hill in 10.0 seconds. What is the acceleration?

  3. physics

    A 75 kg man stands on a spring scale in an elevator. Starting from rest, the elevator ascends, attaining its maximum speed of 1.6 m/s in 1.1 s. It travels with this constant speed for the next 7.2 s, undergoes a uniform negative

  4. Science

    Starting from rest, an object rolls down a long ramp with a constant acceleration of 1.72 m/s2. After rolling for 4.75 s, what is the magnitude of the ball’s final velocity? A. 9.81 m/s B. 8.17 m/s C. 6.30 m/s D. 4.09 m/s

You can view more similar questions or ask a new question.