Consider a toy rocket that undergoes one dimensional motion. it is launched from rest straight up from the ground and rises under constant acceleration for δt1 seconds, where it loses power. it hits the earth δt2 seconds later. you can consider δt1 = t1 – t0 and δt2 = t2 – t1. what was the toy rocket’s acceleration before t1?

Amplitude is a measure of a waves a; speed b; distance c; energy d; frequency

Next a skier is pulled by a tow rope up a frictionless ski slope that makes an angle of 15 with the horizontal. the rope moves parallel to the slope with a constant speed of 0.69 m/s. the force of the rope does 800 3 of work on the skier as the skier moves a distance of 8.4 m up the incline. (a) if the rope moved with a constant speed of 2.2 m/s how much work would the force of the rope do on the skier as the skler moved a distance of 8.4 m up the incline? at what rate is the force of the rope doing work on the skier when the rope moves with a speed of (b) 0.69 m/s and (c) 2.2 m/s?

1. a net force of 100 newton’s is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of