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 need to consider the force of friction acting on the car.
The force of friction can be calculated using the equation:
Frictional Force = coefficient of friction * Normal Force
In this case, the coefficient of friction is given as 0.3.
The Normal Force is the force exerted by a surface to support the weight of an object resting on it. On a level road, the Normal Force is equal to the weight of the car.
Weight = mass * acceleration due to gravity
In this case, the mass of the car is given as 50 kg. 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 calculate the force of friction:
Frictional Force = 0.3 * 490 N = 147 N
Therefore, the minimum force required for the car to start moving is 147 Newtons.