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givi [52]
3 years ago
9

Gregory is visiting his grandmother, who lives 200 km from his house. While traveling there, Gregory had an average speed of 100

km/h. Which of the following is true about Gregory's trip?
O
A
Gregory must have maintained a constant velocity of 100 km/h.
C
B
Gregory must have maintained a constant speed of 100 km/h.
Gregory must have stopped sometime during his trip.
Gregory must have completed the trip in 2 hours.
Physics
2 answers:
labwork [276]3 years ago
5 0

Answer:

Gregory must have stopped sometime during his trip.

Explanation:

He must have stopped because he would have run out of gasoline.

yaroslaw [1]3 years ago
5 0
The answer I’ll be the last one
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You are conducting an experiment inside an elevator that can move in a vertical shaft. A load is hung vertically from the ceilin
Ivan

Answer: The elevator must be accelerating.

Explanation:

As the tension force is opposing to the the force of gravity on the load which is hung vertically, and the tension force can adopt any value in order to comply with Newton's 2nd law, if the tension force is less than the force due to gravity, this means that all system is not in equilibrium, so it must be accelerating.

If we assume that the downward is the positive direction, we can write:

mg - T = ma

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5 0
2 years ago
Ceres, Pluto, and Eris are all round in shape and classified as:_________ A) Leftover planetesimals that formed inside the frost
motikmotik

Answer

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5 0
3 years ago
How much net force is required to accelerate a 2000 kg car at 3.00 m/s^2
andrezito [222]

The net force required to accelerate a car is 6000 N.

Force is defined as the product of the mass and acceleration of the body. Force is used to changing the velocity that is to accelerate an object or a body of a particular mass. The unit of Force is Newton or kg m/s^2.

The formula used to calculate the net force is :

F = ma

where, F = Force

m = mass = 2000 kg

a = acceleration = 3.00 m/s^2

∴ F = 2000*3

F = 6000 N

Thus, to accelerate the car at 3.00 m/s^2 of mass 2000 kg net force required is 6000 N.

To learn more about force,

brainly.com/question/1046166

6 0
1 year ago
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7 0
2 years ago
PLEASE HELP!!
defon
The right answer is A
7 0
3 years ago
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