Question

A bus decreases its speed fron
80 km h- to 60 km h- in 5 S
Find the acceleration of the bus​

Answer 1

Answer:

$v = 60km {h}^{ - 1 } \: \: u = 80km {h}^{ - 1}$

$t = 5s$

$a = v - u \div t$

$a = 60 - 80 \div 5 \\ a = - 20 \div 5 \\ a = - 4 m {s}^{ - 2}$