Physics, 04.10.2021 14:00 mollykay2001p3qo0j

A 3.0 x 10^3 kg truck travels through a curve with a radius of 150 m at 113 km/hr. If the curve is flat, what is the coefficient of friction required to keep the vehicle from skidding off the road? In a real-world situation, would the truck remain on the road?

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from what i could figure out. A 6600 pound truck traveling at 113 km/ hr will need to have 58.4070965 psi. on each wheel. if going going on a curve that have an incline of atleast 2.℅ , which is close to the average curvature of a road. But at that speed and flat angle of the road. and distance . Once the truck is in itsvturn the truck will loose 1/4 of the tires psi, adding the weight , ofvtge truck and the ineshia of the tryck as it leans to one side . The truck will not be able to with stand the force on its tires and slide to the side and roll the tryck as it slide off the road dropping atleast 1-2 inch drop off the pavement.

Answer from: Quest

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

$f\alpha \frac{dp}{dt}$

⇒ $f= k \frac{dp}{dt}$

here k is the proportionality constant whose value is 1.

$f=\frac{dp}{dt}$

$f= \frac{d[mv]}{dt}$

$f= m\frac{dv}{dt} +v\frac{dm}{dt}$

$f=ma+v\frac{dm}{dt}$ [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

Answer from: Quest

Answer(b) 60 miles per hour;