Commercial airplanes are sometimes pushed out of the passenger loading area by a tractor. the 1800 kg tractor exerts a force of 1.95 104 n backward on the pavement, and the system experiences forces resisting motion that total 2400 n. if the acceleration is 0.240 m/s2, what is the mass of the airplane in kilograms? calculate the force (in n) exerted by the tractor on the airplane, assuming 2100 n of the friction is experienced by the airplane.

Explanation:

Given

mass of tractor=1800 kg

Force(F)

Resisting Force=2400 N

acceleration

Let m be the mass of airplane

m=69450 kg

(b)If friction force experienced by airplane is 2100 N then

the body's situation won't change the forces are equal opposit and on the same body

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.