D) 6000 N
Skidding will happen when the applied force exceeds the static friction. So, assuming that the road is level, let's calculate the force needed to overcome the static friction.
First, you need to know the normal force pulling the vehicle to the ground.
That's simply the mass of the car multiplied by the gravitational acceleration.
So:
1500 kg * 9.8 m/s^2 = 14700 kg*m/s^2 = 14700 N = 15000 N (after rounding to 2 significant figures).
Now multiply by the coefficient of static friction.
15000 N * 0.40 = 6000 N
So the answer is "D) 6000 N"
<h2>Right answer: a number and a unit</h2>
The measurement consists in <em>comparing a selected pattern with the object or phenomenon whose physical magnitude is going to be measured, to find out how many times the pattern is contained in that magnitude.</em> That is, it is about identifying or quantifying a particular characteristic or aspect of a particular object or construct.
Now, a well done measurement has two parts:
-The number gives us information about the quantity of the measurement, or in other words, the magnitude of the measurement and its precision.
-The units gives us information about the property that is being measured. This is quite important, because a measurement or result with no units is useless.
Note the units may be expressed with letter or symbols, depending on what we are measuring.
Explanation :
We know that the centripetal force always acting towards the center of a circle. Mathematically, it is given as :
.........(1)
v is the velocity of an object moving in circular motion,
r is the radius of the circle
T is the time taken by an object.
Put he value of v is equation (1)