Final answer:
The question pertains to using physics principles, specifically the laws of motion and the concept of friction, to calculate the stopping distance of a car on wet concrete. We use the coefficient of kinetic friction to find the deceleration and then apply kinematic equations to find the stopping distance.
Step-by-step explanation:
Calculating the Stopping Distance of a Car on Wet Concrete
To calculate the stopping distance of a 1000 kg car traveling at a speed of 40 m/s on wet concrete with a coefficient of kinetic friction of 0.60, we need to use concepts from physics, particularly the laws of motion and friction. The first step is to calculate the deceleration using the formula for frictional force, which is force of friction = coefficient of kinetic friction × normal force. As gravity is the only vertical force acting on the car, the normal force equals the weight of the car (mass × gravitational acceleration). The deceleration can then be found since it is equal to the frictional force divided by the mass of the car. Once deceleration is known, we can utilize kinematic equations to determine the stopping distance.
To illustrate, the frictional force would be (0.60) × (1000 kg) × (9.8 m/s2), and the deceleration a= (frictional force) / (mass). Finally, we use the kinematic equation v2 = u2 + 2as, where 'v' is the final velocity, 'u' is the initial velocity, 'a' is the deceleration, and 's' is the stopping distance. With the initial velocity 'u' being 40 m/s, final velocity 'v' being 0 since the car halts, and 's' being the unknown we want to find, we can solve for 's'.