science

posted by .

A man moves on his bike with 54km/h and takes u- tune (180 degree)and continues it speed to move with same speed .the time of u-tune is 10sec.find its average accleration

  • science -

    r = 54km/h = 54000m/3600s = 15m/s.

    a = (V-Vo)/t = (-15-15)/10 = -30/10=-3.0
    m/s^2.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    A car travels on a straight road for 40km at 30km/h. It then continues in same direction for 40km at 60km/h. a)What is the average velocity of the car during the 80km trip?
  2. Science

    Here are some muliple choice questions I am stuck on. Thanks in advance for help any one can give me. 1) A falling object that has reached its terminal speed continues to gain?
  3. writing

    Write an national anthem for the North Pole.Use a familiar tune from a song or create an orginal tune.
  4. sciencce

    Mrs. Scheib was riding her bike and leaves home and rides due east for a distance of 45 km. she returns home on the same bike path. if the entire bike path takes 4 hrs what is her average speed?
  5. physics

    Due to a tune-up, the efficiency of an automobile engine increases by 4.00%. For an input heat of 1530 J, how much more work does the engine produce after the tune-up than before?
  6. science

    a car starting from rest acquired a speed of 25ms-ยน in 10sec,after which it maintain this speed for 10sec. find (a)the acceleration (b) distance traveled during acceleration (c)total distance traveled?
  7. Pre-Calculus

    3. Joyce is buying a pair of jeans for $39.99. The jeans are on sale at a 20% discount and the sales tax is 7%. Write a function T(x) to represent the total cost of an item with 7% sales tax. Find the composite function (T of S)(x).Use …
  8. math

    Joyce is buying a pair of jeans for $39.99. The jeans are on sale at a 20% discount and the sales tax is 7%. Write a function T(x) to represent the total cost of an item with 7% sales tax. Find the composite function (T of S)(x).Use …
  9. REALLY NEED HELP

    Joyce is buying a pair of jeans for $39.99. The jeans are on sale at a 20% discount and the sales tax is 7%. Write a function T(x) to represent the total cost of an item with 7% sales tax. Find the composite function (T of S)(x).Use …
  10. Physical science check my answers

    2. On my bike, I was able to travel 40 miles in one hour. From this information, we can determine the bike's A. speed. *** B. velocity. C. acceleration. D. direction. 3. The local news team is tracking the storm and has reported that …

More Similar Questions