Question

If you want to find the force needed to pull a small car up a ramp, it would be best to use..

a. A spring scale
b. A formula
c. An electronic balance
d. A triple-beam balance

Answer 1

The answer is; A

By using a spring and determining the tension applied on the string by the car, it is possible to deduce the force. Determine the spring's initial tension as well as spring rate and working loads;

Rate = (Load – Initial Tension) ÷ Travel

k = (L – IT) ÷ T