Question1
Mainly cars have a speedometer, Odometer, and a clock.
A) Illustrate how you might use these devices to determine the instantaneous speed of car
B) express how you can use these devices to determine the average speed of car
Question2
You have a mass of 91 kg and are on a 58-degree slope hanging on to a cord with a breaking strength of 138 Newton's. What have got to be coefficient of static friction to 2 decimal places between you and surface for you to be saved from the fire?
Question3
For a damped oscillator with a mass of 280 g, a spring constant 74 N/m and a damping coefficient of 59 g/s, what is the ratio of the amplitude of damped oscillations to the original amplitude at the end of 20 cycles?