Answer:
Assume that the ball undergoes motion along a straight line. ... F = m A Force = (mass) x (acceleration) The question tells you the mass and the acceleration. All YOU have to do is take the numbers and pluggum into Newton's 2nd law. F = m A = (0.75 kg) (25 m/s²) = (0.75 x 25) kg-m/s² = 18.75 Newtons .
Explanation:
i looked it up ok
Answer:
In explosives,potential energy is in the stored form of chemical energy.
Archimedes discovered
relationships between density and floating. He discovered that the mass of an
object will have density to the volume being displaced.
Answer:
9.72s
Explanation:

Here we need to find out the time that the car took to achieve the velocity of 70km/hr after starting from rest . Firstly convert the final velocity in m/s by multiplying it by 5/18 , as ,
- As we know that the rate of change of velocity is known as acceleration , so ;
Plug in the respective values ,
Simplify ,
Cross multiply ,
Simplify
<h3>Hence the required answer is 9.72s.</h3>