a block sliding on ground where 0.243 experiences a 24.7 friction force. what is the normal force acting on the block?
1 answer:
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Answer:
Kinetic energy
Explanation:
Total energy of any system is always conserved.
E= Total energy
K = kinetic energy
U = Potential energy
Kinetic energy is the energy acquired by the system due to the virtue of it's motion.
Potential energy is the energy acquired by the system due to the virtue of it's configuration.
Also, Kinetic energy
Answer:
a) Average speed = 200 Km/hr
b) Average velocity = 0 m/s
c) Total distance = 800 Km
d) Total displacement = 0 Km
Explanation:
a) Let the speed of the plane from Addis Ababa to Gamble be represented by , and from Gamble to Addis Ababa by
.
Average speed =
=
=
= 200 Km/hr
=
=
= 200 Km/hr
Average speed =
= 200 Km/hr
b) Velocity =
Average velocity =
Since the plane flies from Addis Ababa to Gamble, then back to Addis Ababa, its total displacement is zero.
So that,
Average velocity = 0 m/s
c) Total distance = 400 Km + 400 Km
= 800 Km
d) Total displacement = 400 Km + (-400 Km)
= 0 Km