Question

You build a toy model of a water slide. A red 225 g toy car slides down a 40 degree frictionless ramp. At the bottom, just at it exists onto a horizontal part of the slide, it collides with a purple 475 g car at rest. How high should you make the water slide so that the red toy car gives the purple car a speed of 200 cm/s? Assume the collision is perfectly elastic.

Answer 1

Given mass of red toy m - 225 g mass of purple car m2 475g het V , i are lo velocity of red and purple cars collision V and Vas are final velocities. since the collision is clastic both energy and momentum consolved before is Acel ding to conservation of momenlun mivu make my My Ver. Vi 20 mini - milf & Mats - Audding to the conservation of energy Im vi & maler – mitt mer – from ea 0 g you - 14 th Vit f = Vet di vit dat is de vi Substitute in eg mini- m, (vag-vi) + M, et mini (m, tm.) 2 - Mi viim, tm2) et am 13-14 an 200cm) (2259 +4759 212259 311 11 cm/s 3:11 m/s - - According to the conservation of caugy wigh - Lilith ha (3:14) = 10.99 m) - HA Mi