Question

calculate the kinetic energy possessed by a uniform moving body of mass 40 Kg if it cover 800 metre in a 40 second ​

Answer 1

Answer:

K.E =½mv²

m=40 kg

d=800 m t = 40 s then v=d/t

v = 800/40 =5 m/s

K.E=½*40*5*5

K.E=1*20*5*5

K.E=500 kg m²/s²