Question

WagonR weight 1800 Newton and is pulled by a horse at a speed of 40 metres per second what is the power of horse horse horse ​

Answer 1

Answer:72000 watt

Explanation:

Mass=1800N

Velocity=40m/s

We know that work done =mgs

So,

W=1800×s (s=vt)

W=1800×40×t let his be equation 1

P=w/t

P=(1800×40×t)/t

P=1800×40

P=72000 watts

Answer 2

Explanation:

16 bulbs each of 40 W makes total of 16 × 40 = 640 W

So, in 6 hrs the energy consumed is = 640 × 60 × 60 × 6 J

The energy consumed in kWh is = (640 × 60 × 60 × 6)/(3600000) = 3.84 kWh

A 100 W bulb for 2 hrs will consume energy in kWh

= (100 × 60 × 60 × 2)/(3600000) = 0.2 kWh

So, net energy consumed = 3.84 + 0.2 = 4.04 kWh

In terms of ‘units’ it is 4.04 units of energy consumed per day.