Post a New Question

physics- please help

posted by .

World-class sprinters can accelerate out of the starting blocks with an acceleration that is nearly horizontal and has magnitude 15m/s^2 .
Part a)How much horizontal force F must a sprinter of mass 60kg exert on the starting blocks to produce this acceleration? express your answer in newtons
Part b)
Which body exerts the force that propels the sprinter, the blocks or the sprinter?

question # 2: net force of 225 N accelerates a bike and rider at 2.65m/s^2. What is the mass of the bike and rider together ?

Thank you .

  • physics- please help -

    A : F=ma
    B : m= F/a

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

More Related Questions

Post a New Question