#
A girl of mass 50kg is skating at a conctant speed of 1m/s.suppose she doubles her speed.

2
by tiffany

formula;final kinetic energy -initial kinetic energy

hmmmm yes

got that @tiffany

mass=50 kg. formula of K.E = 1/2 m(v*v). when speed is 1m/s then K.E =1/2*50*1*1. which is equal to 25 J. when the speed doubles i.e, K.E = 1/2 *50*2*2. which is equal to 100 J. so 100/2=4. so i think its 4 times the original K.E

:) TNx a lot

Log in to add a comment