Question

Given : KE = 9520 J, v =4 m/s, To find : m = ?

Answer 1

we know that K.E =1/2 MV2
NOW
=>9520=1/2*M*4*4
=>9520= M*4*2
=>9520/8=M
=> M= 1190
THE MASS OF THE OBJECT IS 1190 KG

Answer 2

m = 1190 kg

Given :

KE = 9520 J , v = 4 m/s

To find :

The value of m

Solution :

Step 1 of 2 :

Write down the given data

Here it is given that ,

KE = 9520 J

v = 4 m/s

Step 2 of 2 :

Calculate the value of m

$\displaystyle \sf KE = \frac{1}{2} m {v}^{2}$

$\displaystyle \sf{ \implies }9520 = \frac{1}{2} \times m \times {4}^{2}$

$\displaystyle \sf{ \implies }8m = 9520$

$\displaystyle \sf{ \implies }m = 1190$

∴ m = 1190 kg

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