Answer:
You should generally have one independent variable in an experiment. This is because it is the variable you are changing in order to observe the effects it has on the other variables.
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Answer:
raheh
Explanation:
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instantaneous speed of the car
Answer:
12500 J = 12.5 kJ
Explanation:
Kinetic energy is the energy possessed by a moving object solely due to its motion.
You can get the K.E. of an object using the equation,
K.E. = (1/2)mv²
So you get, for ball
K.E. = (1/2)×1000×5² = 12500 J = 12.5 kJ