Either a or b
not exactly sure which
There are a lot of things about this whole statement that bother me,
but I'm pretty sure you're not interested in those. You just want a word
to glue onto the end and complete the statement. OK. Use "inertia".
Ans: Thus, the kinetic energy change = 4.5 JThe mass of puppy = 3kg
Kinetic energy initial =

=

Kinetic energy final =

Thus, the kinetic energy change = 4.5 J
Need more details to the question
Answer:
The car traveled, d = 20 Km
Explanation:
Given that,
The speed of the car, v = 40 Km/h
The time taken by the car is, t = 0.5 h
The distance covered by the car for half an hour, d = ?
The relation between the velocity and displacement is given by the formula,
<em> v = d / t</em>
Therefore,
d = v x t
Substituting the given values in the above equation,
d = 40 Km/h x 0.5 h
= 20 Km
Hence, the distance covered by the car is, d = 10 Km