maycayetano89
Answered

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10.A rescue plane drops a box of relief goods to the flood survivor.The plane is traveling horizontally at 42m/s at a height of 0.120km above the ground.Where will the box hit the ground relative to the initial position where it was released?
A. 1.03m B. 6.57m
C. 207.85m D. 1028.57m

11. A baseball is thrown in the air and follows a parabolic trajectory. Point A is the maximum
height while point B is the point just before the ball hits the ground. If air resistance is
neglected, which of the following displays the CORRECT relationship between the speeds
and the acceleration at those two points?
A. VA VB and aArab
C. VA VB and aAaB
B. VA>VB and aA=aB
D. VA=VB and aA<aB

12.If the catapult's projection angle was changed to 45° at the same initial velocity of 55m/s,how long is the stone in the air?
A. 3.0s
B. 4.0s
C. 6.0s
D. 8.0s

13.Which of the following is an example of projectile motion?
A. a jet lifting of a runway.

B. a space shuttle orbiting Earth.

C. a bullet being fired from a gun.

D. dropping an aluminum can into the recycling bin.

14.A bullet is fired horizontally from a gun.At the same time and from the same height,a bullet is dropped.If we neglect the effects of air resistance,how will the time the two bullets spend in the air compare?
A. There is not enough information to determine this.

B. The bullet that is fired will spend less time in air, hitting the ground first.

C. Both bullets will spend the same amount of time in the, hitting at the same time.

D. The bullet that is fired will spend longer in the air, hitting the ground after the dropped bullet.

15.A model rocket flies horizontally off the edge of the cliff at a velocity of 50.0 m/s.If the canyon below is 100.0 m deep,how far from the edge of the cliff does the model rocket land?
A. 112 m
B. 225 m
C. 337 m
D. 400

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Sagot :

Zici

ANSWER:

10. C

11. A

12. D

13. C

14. D

15. B

EXPLANATION:

that's my answer.

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