Question

7. A body of mass 3 kg ascends a slope with a speed of 10 ms. If 15 J of
energy of the body is lost due to friction, the height to which the body
will rise is ſtake g- 10 m/s)
10.5 m
14.5
m
3 ) 3.5 m
4) 2.0 m
Narayana Group of Schools​

Answer 1

Answer:

Explanation:

Energy lost due to friction

E = F * d

where F is force   and d is the hiegth or diatance

thus

105 = m * g * h

 105 = m * 10 * h

m * h = 10.5

if the mass f body is 1 Kg

then 

h = 10.5 m

thus hieght will be 10.5 m