Ok i get the fundamental of Newton's laws. But in this problem, i need to use f=ma to explain how the motion of a stalled car changes when 2 people push it.
I'm pretty sure that m would stay constant. But where do i input the 2 people?
2007-09-26 11:32:49 · 4 answers · asked by dbarr96321 2 in Science & Mathematics ➔ Physics
the total amount of force the 2 people are pushing on the car is f
2007-09-26 11:36:24 · answer #1 · answered by Andrew 4 · 0⤊ 0⤋
The 2 people will exert some force F on the car causing it to have acceleration a.
Doug
2007-09-26 11:36:59 · answer #2 · answered by doug_donaghue 7 · 0⤊ 0⤋
The two people are providing the force (f) in the equation. The acceleration (a) is what will change in relation to the force. You are correct in assuming the mass (m) will remain constant.
2007-09-26 11:37:33 · answer #3 · answered by RJJ 3 · 0⤊ 0⤋
the force the ball exerts on the ball is equal to the force the ball exerts on the bat. Thus, F=m*a is true. The change in velocity over the time it takes for that change to occur is the acceleration--> Force=mass * acceleration. 49.2 m/s - (-1)42.9 m/s = 92.1 m/s / .001s = 921000 m/(s^2) = acceleration just multiply that by the mass of the ball in kilograms, that will give you the average force in newtons.
2016-05-19 03:14:40 · answer #4 · answered by phyliss 3 · 0⤊ 0⤋