We Know,
K.E. = 1/2 mv²
480 = 1/2 (m)(8)²
m = 960/64
m = 15 Kg
So, the mass of the object is 15 Kg
Answer:16.5 m/s
Explanation:
Given
Velocity of boy
velocity of girl
velocity of ball relative to boy backward
Now We have to find velocity of ball relative to girl
Representing it in vector form
and
therefore velocity of ball relative to girl
That product is the object's momentum.
It has a direction ... the same direction as the velocity.
<span>The answer is spin<span>.
The more cores in a golf ball, the more </span>spin<span> that will be created.
Depending on how many layers or cores there are in a golf ball, the number of spins that it will generate when a shot is made increases accordingly.</span></span>
Answer:
As a wire gets longer its resistance increases, and as it gets thinner its resistance also increases because its cross sectional area decreases. Doubling the length will double the resistance, but the wire also must get thinner as it is stretched, because it will contain the same amount of metal in twice the length.