Answer:
11 moments docx has the answer
Explanation:
Answer:
Explanation:
Given
Initial velocity of ball 
height of window 
Using Equation of motion

where u=initial velocity
t=time
a=acceleration
As ball is already is at a height of 20 m so



(b)highest point is obtained at v=0

where
v=final velocity
u=initial velocity
a=acceleration
s=displacement



Highest Point will be 
(c)Time taken when the ball hit the ground i.e. at Y=0


impact velocity 
Answer:
which language is these
Explanation:
we only use english , Hindi ,tamil , bengali and Malayalam
please tell us that it is which language. From that we will slove this
Answer:
4kg
Explanation:
Given parameters:
Kinetic energy = 1.6J
Velocity = 0.2m/s
Unknown:
Mass of the body = ?
Solution:
The kinetic energy of a body is the energy due to the motion of the body.
It is mathematically expressed as;
Kinetic energy =
m v²
m is the mass
v is the velocity
1.6 =
x 0.2 x v²
1.6 = 0.1v²
v² = 16
v = 4kg