a 0.5 kg drone traveling 15 m/s crashes into a tree. what is the momentum of the drone before and after the crash?
A) 0 kg • m/s before and after due to the crash
B) 7.5 kg •m/s before and 0 kg • m/s after
C) 7.5 kg • m/s before and after
D) 30 kg • m/s before and 0 kg • m/s after
imma fail physics woooooooo
1.7.5 kg ⋅ m/s before and 0 kg ⋅ m/s after
2.7.2 kg ⋅ m/s
3.40,000 kg⋅m/s
4.It must have decreased.
5.She will move in the same direction at the same speed forever.
6.two balls colliding in deep space
7.magnetism
8.Determine the momentums of the two particles before the collision and add them together. Determine the momentums of the two particles after the collision and add them together. Verify that both sums are the same.
9.2.0 m/s
10.1.1 m/s
11.81 kJ
12.Increase the input force and decrease the output displacement.
13.4 m
for any of these use wordtune to re right it so you dont get cought. this is the faloup on the test answers abov.
14.well lets do the math. .16kg times 40 m/s and 120 times 0. well since 120 times 0 is 0 that is out of the way and now we have .16 times 40 which is 6.4 kg m/s. now if we calculate that velocity if we take 6.4 = the numbers of the kg's which is .16 and 120 and add those kg's together you get 6.4 = 120.16 v. now we have velocity = 6.4 divided by 120.16 which equals .053 m/s. so both the objects after collision have the velocity of .053 m/s. and if we take .16 times .053 we can find the momentum of the puck after collision it is .0085 kg m/s. then to find the momentum of the keeper after collision we take 120 times 0.53 m/s which then equals 6.36 kg m/s which tells us that the keeper has more momentum than the puck after it was caught. So the keeper has more momentum.
15.because each time the balls click the middle balls always stay calm and in place while the outside balls swing out and it demonstrates kinetic energy being transferred in action as kinetic energy transfers from the first ball through the other balls and to the outside ball on the other side making it swing out like the two outside balls had hit each other directly.
16.well if one of the billiard balls move and collides with the other billiard ball its kinda like newtons cradle the other billiard ball will swing outward with speed because the momentum is overall conserved when the frame is at rest but also in the speed of the first ball colliding in the second ball making it swing outward then come back and collide with the first ball then it repeats.
17.the collision is elastic because the tennis ball strings are elastic making the ball go a long but short distance to the other side of the tennis stadium thing either being hit by another tennis racket or bouncing off the back wall or net. Then the person will put the tennis racket at rest but also at ready when the ball is hit towards them again so the person is ready for any direction the ball might come at them.