Question

what is the work to be done to increase the velocity of a car from 30km/h to 60km/h if the mass of the car is 1500kg? with explanation

Answer 1

hello
to chalo let's feel some physics

bhaiya dekho gaadi ki speed 30km/h hai aur uski speed hame 60km/h karni hai hmmmm

to hame thoda sa force lagana padega gaadi par aur agar force lagaenge to displacement to hoga hi

to work bhi hoga aur us work se gaadi aage badhne lagegi. aage badhi matlab kinetic energy aa gayi (oye hoye maja aa gaya)

yani, yani pura work kinetic energy mai change ho gaya

to

work done = final kinetic energy - initial kinetic energy

W =1/2 mv2² - 1/2m v1²
W =1/2m(v2² - v1²)
W= 1/2 *1500(60² -30²)
W= 750 * (3600-900)
W = 750* 2700
W= 2025 kj

thanks for asking
hope aapko physics ka feel mila hi