Answer:
Explanation:
Initial velocity is 0. In the equation v = v0+at where v0 is the initial velocity of 0, we only have to fill in -9.8 for a and 2 for t to get the velocity after 2 seconds -19.6 m/s; after 5 seconds, when it hits the ground, a = -9.8 and t = 5 to give a velocity of -49 m/s. Gravity pulls down everything at the same rate, it doesn't matter whether we drop a feather or an elephant from the window!
The winds are usually named based on the compass direction the wind is blowing from.
The momentum of the bumper car after the collision is 1,040 kgm/s.
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Momentum of bumper</h3>
The change in momentum of the bumper is calculated as follows;
P = v(m1 + m2)
P = 8(55 + 75)
P = 1,040 kgm/s
The momentum of the bumper car after the collision is 1,040 kgm/s.
The direction is still the same.
Learn more about momentum here: brainly.com/question/7538238
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Answer:
C) not change
Explanation:
This question is typically the principle of Archimedes. If the pressure on the surface of the can is doubled, the buoyant force on a stone would not change because it would be equal to the weight of the water that is displaced.
