The position of a particle moving along X - axis depends on time according to the equation, x = 3t2 - t
3 – 4t + 5 , where x is in meter and t is in second
Calculate velocity and acceleration at t = 0, t = 2 and t = 4seconds
b. Calculate the average velocity between t = 2 and t = 4 seconds
c. Calculate average acceleration between t =1 and t =3 seconds

Why is alchemy not considered to be a science ?

Ten students stand in a circle and are told to make a transverse wave. what best describes the motion of the students? each student bumps the shoulder of his or her neighbor. at the exact time, all students take a step to the right. the students skip clockwise, going in a circular motion. one at a time, each student lifts his or her hands up and then down.

When a 5.0kg cart undergoes a 2.2m/s increase in speed, what is the impulse of the cart