Answer:
A. Velocity
Explanation:
Velocity is vector quantity thus has both magnitude and direction. It describes not only the speed but also the direction. Speed is scalar quantity so describes only speed but not direction. Energy has nothing to do with speed, acceleration describes change in velocity in a direction over time
We don't really understand what "ball really is life" means, but
judging by the overall group of questions you posted today, one
can be pretty sure that this one is equally meaningless.
Soap bubbles and balloons are also spheres, but have no influence
on the nature of life.
The rocket works on the principal of action and reaction. Newton's third law of motion.
Answer:
The time taken by the boat to make the one-way trip from A to B = 3 hrs
Explanation:
Distance between A & B = 21 mile
Velocity of river ( v ) = 2
Total time taken ( T )= 10 hours
By solving above equation we get
u = 5
The time taken by the boat to make the one-way trip from A to B
T = 3 hours
This is the time taken by the boat to make the one-way trip from A to B.