Calculate the kinetic energy of a car of mass 1.0*10^3kg moving at speed of 20ms^-1.
By using the equation: Kinetic Energy = (1/2)mv^2, using m as 1000kg and v as 20ms^-1.We can calculate this value as follows: KE = (1/2)(1000)(20)^2This is equal to 2.0*10^5J (solved using a scientific calculator).
RH
Related Physics A Level answers
All answers ▸A piece of card is released from rest at a height of 0.5m above a light gate. It falls freely and a computer measures the velocity as it passes through the light gate to be 3.10m/s. What is the acceleration due to gravity measured by this experiment?
Is F=ma Newton's 2nd Laws of Motion?
What is the photoelectric effect and how does it provide evidence for the quantisation of electromagnetic radiation?
A 80kg man is hanging from two 1.5m ropes that lie at 60 degrees from the horizontal. What is the tension in each rope required to prevent the man from dropping?