Answer:
a) D=-4273(x)-2327(y)
b) v=23.33m/s
c) V=-13.51m/s south of west.
Explanation:
In order to find the displacement we have to divide the motion on its X and Y components:
The total X displacement is the algebaric sum of the movement:
We have to do the same on Y:
D=-4273(x)-2327(y)
The angle is given by:
That is 28.57 degrees south of west.
the total displacement magnitude is given by:
The average speed is given by:
and the Average velocity is given by:
The average velocity is:
with an angle of 28.57 degrees south of west.
A.
accept new and different ideas.
Answer:
Both the small car and the truck experience the same net force.
Explanation:
- Net force can be defined as the vector addition of all the forces that follow up on a particle or a body.
- It is a single force that changes the effect of the initial force on a particles motion.
- If in case the net force acting on a particular body is zero then it means that the object or the body is not moving or accelerating at all and is in a state of stability.
Answer:
Explanation:
Force of friction = μ N , where μ is coefficient of friction , N is normal force on the body .
a )
Given,
Normal force N = 400 N
Force of friction = 300 N
μ = coefficient of static friction = ?
Putting the values ,
300 = 400 μ
μ = .75
b )
Normal force N = 400 N
Force of friction = 200 N
μ = coefficient of kinetic friction = ?
Putting the values ,
200 = 400 μ
μ = .50
c ) see attached file .
Answer:
a. Goslo
Explanation:
given data
Speedo travels = 40 light year
Speedo travels relative to the Earth = 0.997
solution
Goslo will measure here proper time and this time is expres as
time T = Speedo travels ÷ Speedo travels relative to the Earth ..........................1
put here value
time T =
time T = 40.1 year
so Goslo will measure the proper time