Question

1. Express 36 kmh1 in ms1
2. Express 15 ms1 in km h 1
Answer the questions step by step​

Answer 1

Question:

1. Express 36 km/hr into m/s.

2. Express 15 m/s into km/hr.

Solution:

1. Express 36 km/hr into m/s.

$\qquad$ To convert km/hr into m/s. Divide it by $\sf \dfrac{5}{18} .$

$\qquad \qquad \quad : \implies \sf 36 \times \dfrac{5}{18}$

$\qquad \qquad \quad : \implies \sf \dfrac{36 \times 5}{18}$

$\qquad \qquad \quad : \implies \sf \dfrac{180}{18}$

$\qquad \qquad \quad : \implies \sf 10$

$\qquad \quad \therefore {\red{\underline{\boxed{\bf 36 \ km/hr = 10 \ m/s}}}}$

2. Express 15 m/s into km/hr.

$\qquad$ To convert m/s into km/hr. Divide it by $\sf \dfrac{18}{5} .$

$\qquad \qquad \quad : \implies \sf 15 \times \dfrac{18}{5}$

$\qquad \qquad \quad : \implies \sf \dfrac{270}{18}$

$\qquad \qquad \quad : \implies \sf 54$

$\qquad \quad \therefore {\red{\underline{\boxed{\bf 15 \ m/s = 54 \ km/hr}}}}$

Answer 2

Answer:

Refer the above attachment