Ask Experts Questions for FREE Help !
Ask
    kt81's Avatar
    kt81 Posts: 2, Reputation: 1
    New Member
     
    #1

    Jul 25, 2009, 12:44 AM
    Physics questions regarding velocity
    A sled has a constant acceleration of 2.0ms-2 and starts from rest.
    (a) how fast is it going after 5.0
    (b) how far has it traveled in 5.0s?
    (c) what is its average velocity in the first 5.0s?
    (d) how far has it traveled by the time its velocity has reached 40ms-1?



    A car, initially at uniform velocity, accelerates at 1.0ms-2 for 12s. If the car travelled 190m during this 12s period, what was the velocity of the car when it started to accelerate?



    Show working
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
    Uber Member
     
    #2

    Jul 25, 2009, 01:26 AM

    Make use of

    v = final velocity
    u = initial velocity
    a = acceleration
    t = time



    s = distance travelled (in fact it is displacement)

    Average velocity = Total Distance / Total time



    Use these formulae, you'll be able to solve all these problems.

Not your question? Ask your question View similar questions

 

Question Tools Search this Question
Search this Question:

Advanced Search


Check out some similar questions!

Physics Velocity [ 2 Answers ]

A person takes a trip, driving with a constant speed of 89.5 km/h, except for a 22.0-min rest stop. If the person's average speed is 77.8 km/h, how much time is spent on the trip and how far does the person travel? Need explanation, Thanks

Physics velocity? [ 2 Answers ]

A jet plane lands with a speed of 100m/s and can accelerate uniformly at a maximum rate of -5.0m/s as it comes down to rest can this plane land at an airport where the runway is .80km long.

Physics velocity [ 8 Answers ]

A student throws a baseball vertically upward, and 2.8s later catches it at the same level. Neglecting air resistance, calculate the following. a) velocity at which the ball left the student's hand answer : 14m/s b) the heigt to which the bal climbed above the students hand answer : 9.6m

Physics with Velocity [ 2 Answers ]

At 8:00 am your cars odometer read 1950 kilometers . At noon it reads 2340 kilometers . What was your average velocity

Velocity & Physics [ 1 Answers ]

A train approaches a small town with a constant velocity of +28.6 m/s. The operator applies the brake, reducing the train’s Velocity to +11.4 m/s. If the average acceleration of the train during Braking is –1.35 m/s2, for what elapsed time does the operator apply The brake?


View more questions Search