Answer:
B) Its velocity is perpendicular to the acceleration.
Explanation:
For general projectile motion, the horizontal acceleration is 0 and the vertical acceleration is -g. This is true for all points on the trajectory.
At the highest point, the vertical velocity is 0. So you have only a horizontal velocity as well as a vertical acceleration. So the two are perpendicular.
Answer: it goes the same speed as the car
Explanation:
Answer:
70 kg = 7e+7
Explanation:
multiply the mass value by 1e+6
Answer:
Explained
Explanation:
Scientist have divided the second layer of Earth's Surface into two parts those are Upper and Lower mantle.
Although both the layer are almost similar but they do have some minor difference that distinguish the two layers. The upper mantle has Olivine ( a very special rock), compounds with silicon dioxide and a substance called Peridotite
Lower mantle is more solid than the upper mantle, it has a lot of Olivine rock, iron, magnesium and many silicate compounds. therefore, its density is higher.
Velocity is defined as the change in position per unit time, which is literally the slope of the position vs time graph. Thus, the instantaneous velocity at point B is the slope of the graph at point B, which is approximately
(40m - 20m) / (3s - 0s)
= 6.67 m/s.