a car of mass 50kg accelerates on a straight level road with coeficient of friction 0,3.what is the minimum force required for the car that to start moving?
To find the minimum force required for the car to start moving, we can use the concept of the force of friction.
The force of friction can be calculated using the equation:
Friction = coefficient of friction * Normal force
In this case, the normal force is equal to the weight of the car, which can be calculated as:
Weight = mass * gravity
where the mass of the car is given as 50 kg, and the acceleration due to gravity is approximately 9.8 m/s^2.
Weight = 50 kg * 9.8 m/s^2 = 490 N
Now, we can substitute the values into the equation for the force of friction:
Friction = 0.3 * 490 N = 147 N
Therefore, the minimum force required for the car to start moving is 147 N.