what is the acceleration of a 30.0-kg go kart if the thrust of its engine is 300.0 N?
F = M a = (1,300) x (1.5) = 1,950 newtons
45000 m/ s squared
For an object experiencing a constant net force, Newton's Second Law of Motion can be used to obtain the equationF = ma,where F is the net force, m is the mass of the object and a is the acceleration of the object due to the net force, F. Rearranging the equation for acceleration and substituting in the mass of the box and the net force acting on it givesa = 900N/300kga = 3ms-2.
If the car and driver are moving (along a flat horizontal surface) at constant speed, then there is no acceleration, and the net horizontal force is zero.The applied 3,000N must be canceled by an effective total 3,000N of friction.
Well force=mass x acceleration. Force in Newtons (N) Mass in kg Acceleration in metres per second squared. force = 3000N 3,500 N
Gravity has no effect on the mass of an object. However, an object's weight is the measurement of gravitational force on the object. The gravitational force on the moon for example is ~ 1/6 of that on Earth. A 300 kg object would weigh 3000N (Newtons) on the Earth but only weigh 500 N on the Moon but its mass would still be 300 kg on the Moon and on the Earth.
Pressure is the force on something per unit area. P = F/area If using SI units (which we are) then it's measured in Pascals (N/m(sq)) Assuming your crate is applying it's force evenly and that it is on a flat floor then it's just 3000/2 = 1500 Pa. Fun to be had tipping your crate up onto a corner (say about a cm square in contact) so it then produces a force of 3000/0.01 = 300,000 Pa This is why thin girls in stiletto heeled shoes leave marks on floors....