ENERGI KINETIC,POTENSIAL DAN MEKANIK

1.At his highest point,a boy on a swing is 2m from ground.While at her lowest point is 1m from the ground.Find maximum speed.
2.a 5 kg ball is lifted to a height of 100 m and dropped.Find its kinetic energy when it is 20 m from ground.
3.A 1000 kg car initially travelling at 36 km/h accelerates to 108 km/h.Find the changes in car's kinetic energy.

1
no 1 aja deh
anak cerdas jawab plzz

Jawabanmu

2014-07-26T08:17:42+07:00
1kecepatan maksimalnya adl 2 m/s.
rumusnya v=s.t