Question

can anyone solve the following linear equation by only cross-multiplication method...​

Answer 1

Answer:

225J

Given, velocityofobject,v=5ms

−1

;

kineticenergyofanobject,E

K

=25J

E

K

=

2

1

mv

2

or 25=

2

1

×m×(5)

2

or m=

25

50

=2kg

When the velocity triples,

E

K

=

2

1

mv

2

=

2

1

×2×(15)

2

=225J

Answer 2

I hope help you

Mark me as branlist plz