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runningirl
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please help :) force question
Use g=10 N/kg for this problem.
A 0.50 kg cart is on a level track. A horizontal string is pulling the cart. The string goes over a pulley and there is a 0.25 kg mass hanging at the other end.
a) What is the acceleration of the cart, if there is no friction>
b) Would the acceleration be different if there were a student pulling the string with a force of 2.5 N, rather than the 0.25 kg mass doing the pulling?
T+(-mg)=ma
for part B, i said it wouldn't matter because ultimately, 2.5 N=0.25 kg in this case because 2.5= 10*(m).
Homework Statement
Use g=10 N/kg for this problem.
A 0.50 kg cart is on a level track. A horizontal string is pulling the cart. The string goes over a pulley and there is a 0.25 kg mass hanging at the other end.
a) What is the acceleration of the cart, if there is no friction>
b) Would the acceleration be different if there were a student pulling the string with a force of 2.5 N, rather than the 0.25 kg mass doing the pulling?
Homework Equations
T+(-mg)=ma
The Attempt at a Solution
for part B, i said it wouldn't matter because ultimately, 2.5 N=0.25 kg in this case because 2.5= 10*(m).