An object has a kinetic energy of 88 J and a mass of 45 kg, the object is moving at the speed of 1.977 meters/second.
What is mechanical energy?
Mechanical energy is the combination of all the energy in motion represented by total kinetic energy and the total stored energy in the system which is represented by total potential energy.
The expression for total mechanical energy is as follows
ME= PE+KE
Where ME is the mechanical energy
PE is the total potential energy
KE is the total kinetic energy
As for the given problem, An object has a kinetic energy of 88 J and a mass of 45 kg.
the kinetic energy of any object is given by the expression
K.E= 1/2*m*v²
where K.E is the kinetic energy of the object
m is the mass of the object
v is the velocity of the object
by substituting the respective values
88 = 0.5* 45*v²
v²=3.911
v = 1.977 meter/ seconds
The object is moving at the speed of 1.977 meters/ seconds.
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