March 22, 2017

Post a New Question

Posted by on Sunday, September 26, 2010 at 4:16pm.

A football player, starting from rest at the line of scrimmage, accelerates along a straight line for a time of 1.5 s. Then, during a negligible amount of time, he changes the magnitude of his acceleration to a value of 1.4 m/s2. With this acceleration, he continues in the same direction for another 1.2 s, until he reaches a speed of 3.4 m/s. What is the value of his acceleration (assumed to be constant) during the initial 1.5 s period?

  • Physics - , Sunday, September 26, 2010 at 4:23pm

    Well,this is a math exercise more than physics.
    Compute the value of Vf at the end of each period, and use that as the Vi for the next period.
    First period:
    Second Period
    solve the last equation for a.

  • Physics - , Sunday, September 26, 2010 at 4:46pm

    Thanks, it really helped

Answer This Question

First Name:
School Subject:

Related Questions

More Related Questions

Post a New Question