Answer: Option (b) is the correct answer.
Explanation:
Kinetic energy is the energy of an object or particle when it is in motion.
Mathematically, Kinetic energy = 
It is given that toy truck has mass = 0.75 kg, and velocity = 4 m/s.
Calculate the kinetic energy as follows.
Kinetic energy = 
= 
= 
= 
= 
or, Kinetic energy = 6 joules
Thus, we can conclude that kinetic energy of toy truck is 6 J.
The answer is A 0 degrees is the freezing point of water
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Answer:
A. The sum of all the forces acting on an object.
Answer:
Prob. D
Explanation:
I am also a Visual Learner.
Answer:250N
Explanation:
Spring constant(K)=500N/m
extension(e)=0.5m
Weight=k x e
Weight=500 x 0.5
Weight=250N