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SCORPION-xisa [38]
3 years ago
11

For an investigation, a student measures the speed of a cart as it rolls down a ramp. The student then records data in the table

shown above. Which of these best explains the student’s data?
A.
The speed of the cart decreases as the cart rolls down the ramp because of friction between the cart and the ramp.

B.
The speed of the cart increases as the cart rolls down the ramp because the force acting on the cart is greater than the force of gravity.

C.
The speed of the cart increases as the cart rolls down the ramp because the forces acting on the cart are unbalanced.

D.
The speed of the cart decreases as the cart rolls down the ramp because the forces acting on the cart are balanced.

Physics
2 answers:
Andrej [43]3 years ago
4 0

Answer:

(nice doge loaf lol) its b

Explanation:

it just makes the most sense

alexgriva [62]3 years ago
3 0

Answer: it’s c

Explanation:I put that as my answer for an assignment and got it right

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A motorcycle is following a car that is traveling at constant speed on a straight highway. Initially, the car and the motorcycle
MAVERICK [17]

Answer:

t₂ = 3.89 s

Explanation:

given,

speed of car  = 23 m/s

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after time of 4 s distance between them is equal to = 53 m

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time taken to catch up with car = ?

let t₂ be the time in which motorcycle catches car.

distance traveled by car in t₂ s

d = 23 t₂ + 53

distance traveled by motorcycle

using equation of motion

s = ut + \dfrac{1}{2}at^2

s = 23 t_2 + \dfrac{1}{2}\times 7 \times t_2^2

now, equating both the distances

23t_2 + 53= 23 t_2 + \dfrac{1}{2}\times 7 \times t_2^2

t_2^2 = 15.143

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time taken by the motorcycle to catch the car is equal to 3.89 s

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alukav5142 [94]

This question involves the concepts of orbital velocity and orbital radius.

The orbital velocity of ISS must be "7660.25 m/s".

The orbital velocity of the ISS can be given by the following formula:

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Learn more about orbital velocity here:

brainly.com/question/541239

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