3 13
An engineer is designing the runway for an airport. Of the planes that will use the
airport, the lowest acceleration rate is likely to be 3 m/s2. The takeoff speed for this
plane will be 65 m/s. All airplanes will start from rest. Assuming this minimum
acceleration, what is the minimum allowed length for the runway?
v2v ²+2ad
VaVota:
d=v0t+1/2012
d=1/2(V+V.)
MB

explanation:

considering the bohr theory, the type of connection that requires the transfer the answer conuldn't be right

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 -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [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.

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it