An orange is thrown vertically upwards at 6.0m/s from a condominium window located 16.0m above the ground. The orange goes up, falls straight back down towards the ground
and lands on the roof of a van 2.40m in height.

a. Determine the maximum height reached by the orange above the ground.

b. Calculate the speed of the orange 1.0s after it has been thrown upwards.
c. How long is the orange in the air?

d. What is the speed of the orange just before it hits the van?

e. If an apple is thrown straight downwards at 3.0m/s from the window, determine if the
apple would hit the van traveling faster, slower or the same speed as the orange.

change tension

the only real purpose of sputnik 1 was to beat the us into space. we were getting close to launching a useful satellite, explorer 1 - which launched on january 31, 1958. the ussr had to beat that, so they launched sputnik 1 on october 4, 19

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.

technology is the application of the knowledge gained by science.