Two cars have a 500 m race. They both start from the x = 0 position. Car 1 drives at a constant speed of 30 m/s. Car 2 starts from rest and accelerates at a constant rate of 4 m/s2
a. Write the equation of motion for car 1. b. Write the equation of motion for car 2.

The motor m applies a time-varying force of f (200 t) n, where t is in seconds. box b with mass 200 kg starts from rest, and the coefficients of kinetic and static friction are 0.2 and us 0.3 the acceleration due to gravity is g 9.8 m/s2 b 300 a) find the time ' when the box starts to move. b) calculate the speed of the crate at 3 s c) calculate the power delivered by the motor at t 3 s

Explain the consequences of this addiction to the brain tissue

Diamond will scratch quartz. true or false