Because its already all dirty and messed up, what would change about it?
Option (d) is the correct answer.
As we know that kinetic energy is the energy obtained by an object. And, relation between kinetic energy and mass of an object is as follows.
Mathematically, K.E =
where, m = mass of an object
v = velocity of an object
Since, it is given that all the objects are travelling at a same speed and kinetic energy is directly proportional to mass of an object. Hence, more is the mass of object more will be its kinetic energy.
So, out of the given options a semi-trailer truck will have the highest mass. Hence, kinetic energy of semi-trailer truck will be the highest.
Thus, we can conclude that semi-trailer truck is the vehicle which has the greatest kinetic energy.
D. sports car. i hope this helps
D.a pick-up truck
Force required to move an object is given by
F = ma
m = Mass
a = Acceleration
Here, the acceleration is constant as all the velocities are same so the mass varies the force required. From the equation it can be seen that force varies directly with mass i.e., if mass increased the force will also be increase.
Out of the options here the pick up truck has the most mass so the amount of force will be greatest here.
Kinetic energy is directly proportional to mass of the vehicle
Since all vehicles are moving at the same velocity, their kinetic energy will vary depending on their mass.
Among a bicycle, a motorcycle, a car, and a semi-trailer truck, the semi-trailer truck is the heaviest.
Hence, the semi-trailer truck will have greatest kinetic energy
The answer is the semi truck
WE know that a=F/m and since F is the same for all vehicles, it means the higher the mass, the lesser the acceleration and the smaller the mass the higher the acceleration. From the table given, vehicle a has the smallest mass, of 1000 Kg hence it yields the highest acceleration
1/3 + 1/5 = 8/15.