224k views
5 votes
Physics question please help

Physics question please help-example-1

2 Answers

3 votes
HELLO DEAR,

GIVEN:-
MASS (m) = 9000kg
kinetic energy (k) = 18000j

we know :-
k = 1/2 mv²

therefore,
18000 = 1/2 × (9000) × v²

v² =
\bold{(18000 * 2)/(9000)}

v² = 36/9

v² = 4

v = 2m/s

hence, option (A) is correct,

I HOPE ITS HELP YOU DEAR,
THANKS
User Peter Bennink
by
5.4k points
4 votes

1.4 m/s im in 12th grade did this so this should be right

User Denishaskin
by
6.6k points