Answer:
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Answer:
The acceleration is given by de second derivative of x(t) which is equal to m/s^2
Explanation:
a) We have the equation x(t)=at^4+bt^3+ct which is the position of the body of mass m at a time t
Where a, b and c are constants
From the rules of differenciation we have that the first derivative of the position is the velocity and the second derivative is the acceleration.
Hence the first derivative of the function is equal to [/tex] m/s
Don´t forget to write down the unities
Then we have to derivate again this equation, so we have
m/s^2[/tex]
b) Remembering the Newton´s laws we know that
where:
F is the force
m is the mass
and a is the acceleration
From the first part we know the value of the acceleration which is
m/s^2
So using the second law formula and replacing the values we have that
F=m( ) N
Remember the that N= Newton which is kg*m/s^2
Answer:
Explanation:
Therefore, the speed of the car is 63m/s after 8 seconds while accelerating at it maximum capability.
I believe it’d have a higher resistance because if it had a lower resistance more electrons could travel threw it
Answer:
(a) To draw water from a well we have to pull at the rope.
(b) A charged body attracts an uncharged body towards it.
(c) To move a loaded trolley we have to pull it.
(d) The north pole of a magnet repels the north pole of another magnet.
Explanation:
Just trust me