# NTSE physics question An engine supplies 196 joules of energy. If the energy is supplied to a weight of 500 gms. How high can it be lifted (a) 38.2 (b) 39.2 (c) 40.2 (d) 42 Please explain! Thanks

2
by Bobookspromyg26

• Brainly User
2015-10-10T13:12:21+05:30

### This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Ans. (b) Energy supplied to the engine = 196 1
Mass of water= 500 gm = 500/1000 = 1/2 kg
Acceleration due to grom1d (g) = 10 mtlsec
2.Energy required for lifting water= mgh
H =energy supplied I m x g = 196 x 2 I 1 x 10 = 39.2 mt.
2015-10-10T15:28:53+05:30

### This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Energy = 196 J
mass = 500g = 0.5 kg
let the height = h

Potential energy = mgh
196 = 0.5*10*h
h = 196/5 = 39.2 m