Acceleration is a vector quantity that takes into account the changes in either the direction or the velocity or both. From the choices given, I go with choice number 2 where the body moves in a circular motion; thus, causing changes in its direction from time to time.
Answer: 2.34s
Explanation:
Given the following :
Horizontal Velocity(V) = 3.22m/s
Horizontal Distance = 7.54m
Therefore, the time spent in the air can be calculated thus:
Using the relation:
Speed = distance / time
3.22m/s = 7.54m / time
Time = 7.54m / 3.22m/s
Time = 2.34s
I do, and my brother and son-in-law can also solve it.
Note: V1, V2, V3, I1, I2, and I3 are not labeled in the picture, so those can't be solved for.
30ml is the correct answer to your question hope i can help
Answer:
0.147 J
Explanation:
The total energy that has been transformed into thermal energy is equal to the loss of gravitational potential energy between the initial situation (bob at h=0.5 m above the ground) and the final situation (bob back but at h=0.45 m above the ground).
Therefore, we have
where
m = 0.3 kg is the mass of the bob
g = 9.8 m/s^2
h1 = 0.5 m is the initial height
h2 = 0.45 m is the final height
Substituting, we find the thermal energy
Therefore, the energy transformed into thermal energy is 0.147 J.
