What force would be needed to increase a 450 kg object's velocity from 15 m/s to 75 m/s in 1 minute?

450N

Explanation:

Given parameters:

Mass of object  = 450kg

Initial velocity  = 15m/s

Final velocity  = 75m/s

Time  = 1min  = 60s

Unknown:

Force applied  = ?

Solution:

To solve this problem, from Newton's second law of motion, we know that;

  Force  = mass x acceleration

  Acceleration  =

 v is the final velocity

 u is the initial velocity

 t is the time taken

Now;

    Force  = mass x  

   Force  = 450 x  = 450N

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000

hypothesising or postulating