Question

calculate the speed of a body if it travel 2 kilometre in 1.2 minutes please solve it in step by step​

Answer 1

$distance = 2 \: km \\ = 2 \times 1000 \\ = 2000 \: m \\ time = 1.2 \: min = \frac{12}{10} \\ = \frac{12}{10} \times 60 \\ \\ = 12 \times 6 \\ = 72 \: sec \\ distance = speed \times time \\ \\speed = \frac{distance}{time} \\ \\ speed = \frac{2000}{72} \\ \\ speed = 27.77 \: m/s$

So, speed is $\large{\boxed{\mathcal{27.77\:m/s}}}$.