Physics, asked by Ak4d007, 11 months ago

a force of hundred Newton act on an object of mass 10kg for 9 second if the object was initially moving with a speed of 10 M per second calculate the initial and final kinetic energy of the object of by what factor does the kinetic energy increase

Answers

Answered by mansi5556
2
Hii
Answer is 50000
Hope it helped

Ak4d007: hlo madam actually I need the solution so please can you provide me with solution
mansi5556: Use formula 1/2 mv^2
Ak4d007: what is the use of t in this question
mansi5556: first find a
mansi5556: by v=u+at
mansi5556: then use that formula
mansi5556: you will get your answer
leoatul: it is very easy question
Ak4d007: ok shuar thanks
leoatul: goni18 donkey
Answered by leoatul
5
v=u+at
v=10+10×9 {a=f/M=100/10}
v= 10+90
v=100m/sec

final kinetic energy =1/2m×v×v
1/2×10×100×100
=50000kgm/sec
initial kinetic energy =1/2×m×v×v
=1/2×10×10×10
=500

leoatul: it is very easy Question.
Ak4d007: not for all
leoatul: ☺☺☺
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