Respuesta :

elchaupa

Answer:

acceleration=40m/s² and distance is 27.5m

Step by step explanation:

(a)acceleration is given by:

a=v-u/t

v=65km/h,u=45km/h, t=30min which is ½hour

therefore a=65-45/½

a=40

the distance is given by:

S=ut+½at²

S=(45•½)+½(40)(½)²

S=27.5m

Otras preguntas