Question

kisi train ki pahiye ki paridhi 40cm aur vah 4 sec me 7 chakkar lagata hai to train ki raftar kya hogi

Answer 1

Answer:

70 cm/sec

Step-by-step explanation:

circumfrence of the wheel = 40 cm

7 rounds in 4 sec

1 round  =  4/7 sec

distance covered in 7 rounds = 40*7 = 280 cm

speed of the train = distance/ time = 280/4 =70 cm/sec