Question

guys help me cha motion​

Answer 1

Answer:

200m

Explanation:

initial velocity=20km/hr (let distance=s)

final velocity=80km/hr time=4minutes

acceleration=v-u/t

80km/hr-20km/hr/4min

= 15km/hour

by third equation of motion :

v square=u square+2as

80 square=20 square+2×15km/hr×4min

6400 =400+2×15×s

6400-400=2×15×s

6000=30×s

6000/30=s

200=s

so distance=200