Answer:
It might be the sum is the same
Explanation:
Correct me if i am wrong but there is no friction so that means there would not be anything slowing down the ball, therefore the ball wouldn't change or the energy wouldn't change because the ball would never stop.
Answer:
magnitude

Direction
Opposite to the velocity of aircraft
Explanation:
As we know that the initial speed of the aircraft when it land on the ground is

now the final speed of the aircraft when it covers 705 m on runway is given as

so here we know that

so now we can say that



Answer:
Explanation:
The pingpong ball reaches the ground directly under the student. That means net displacement is zero
Time of fall t = 
Initial horizontal velocity = v ,
horizontal acceleration = - a ( deceleration because net displacement is zero)
0 = ut - 1/2 a t²
0 = 
v = 1/2 a 
h = 
A. elastic motion because that's the answer
Hey! If this is on big ideas get a app called “Slader” It has answers to all math problems just like up the book you use > save it > type in the section you are doing > and look for the problems you are doing.