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Sagot :
Explanation:
Given that,
Mass of a trolley, m = 6 kg
Kinetic energy of the trolley, K = 40 J
To find,
The velocity of with which he is running.
Solution,
The kinetic energy of an object is given by the formula as follow :
K = 1/2 mv²
v is velocity
Putting all the values we get :
v = √2k / m
v = √2×40/6
» v = 3.65 m/s
So, he is running with a velocity of 3.65 m/s.
3.65m/s
Answer:
Solution given:
mass(m)=6kg
kinetic energy: 40J
velocity(v)=?
we have
kinetic energy =½mv²
40=½*6*v²
[tex]\frac{40}{3}[/tex]=v²
v=[tex]\sqrt{\frac{40}{3}}=3.65m/s[/tex]
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