Friday

April 18, 2014

April 18, 2014

Posted by **Emma** on Sunday, April 29, 2012 at 4:55pm.

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 -
**Elena**, Sunday, April 29, 2012 at 5:02pmA : F=ma

B : m= F/a

**Related Questions**

Math - Eight sprinters from different universities are in the final match. In ...

Statistics - Eight sprinters from different universities are in the final match...

algebra... - In a school, there are 4 more students in Class A than in Class B, ...

physics all the time - Ya so honestly...I cant figure out how to graph this ...

math - I am so bad at word problems! Help me find out how to figure this one out...

Physics - The average person passes out at an acceleration of 7g (that is, seven...

Physics - If 100 m sprinters accelerate from rest for 3.5 s at 2.8 m/s^2, how ...

History - Thanks, for for your suggestion.Please check on the following ...

Physics please help!! - A mass M is initially at rest on a horizontal surface...

Physics please help!! - A mass M is initially at rest on a horizontal surface...