Calculate the k.e .of
A. a 1kg trolley travelling at 2m/s
as always, KE = 1/2 mv^2
so plug in your numbers.
a one kilogram trolley ?
To calculate the kinetic energy (KE) of an object, you can use the equation:
KE = 0.5 * mass * velocity^2
Given that the mass of the trolley is 1kg and its velocity is 2m/s, you can substitute these values into the equation:
KE = 0.5 * 1kg * (2m/s)^2
First, let's calculate the value inside the brackets:
(2m/s)^2 = 2m/s * 2m/s = 4m^2/s^2
Now, substitute this value back into the equation:
KE = 0.5 * 1kg * 4m^2/s^2
Simplifying further:
KE = 0.5 * 1 * 4m^2/s^2
KE = 2m^2/s^2
Therefore, the kinetic energy of a 1kg trolley traveling at 2m/s is 2 Joules (J).