Answer:
See below....the question is unclear....pick the answer you think they want
Explanation:
Car goes from 30 m/s to 24 m/s in 10 seconds
acceleration = change in velocity/change in time
= -6 m/s / 10 s = <u>- 3/5 m/s^2 </u>
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The wording of the question is not very good.....perhaps they meant to say that after the 5 seconds the velocity is now 24 m/s ?
a1 *10 + a2 *5 = -6 m/s
( 6 m/s is the change in velocity from 30 to 24 m/s)
a1/a2 = 1.5 so a2 = a1/1.5 (substitute this in)
10 a1 + 5 ( a1/1.5) =-6
15 a1 + 5 a1 = -9
<u>a1 = - .45 m/s^2</u>
To solve this problem we will apply the concepts related to the gravitational force expressed in Newton's statements as the product between the constant of gravity, the two masses to study and the distance to the square that separates them. Mathematically this can be described as
Here,
G = Gravitational constant
m = Mass 1
M =Mass 2
d = Distance between them
Replacing with our values,
Therefore the force of gravity is
Frame of reference refers to something that is not moving with respect to an observer that can be used to detect motion.