Homework Statement
A 1.89 kg mass is suspended from a string which is pulled upward. The mass accelerates upwards with an acceleration of 3.30 m/s2. What is the tension in the string?
Homework Statement
What is the average net force on a car during a zero to 60mph (0 to 30m/s) acceleration? Compare this force to the weight of the car.
Homework Equations
I just don't know what equations to do and need help to figure out what to do.