Question

There are only 4 questions please solve all the questions and i will mark you as brilliant​

Answer 1

Answer:

1 distance=total path travelled

distance=AB+BC+CD=(5+4+5)cm=14cm

displacenent=AD=BC=4cm

2 distance=2 pi r

displacement=0

3 time,t=11s radius,r=7cm

distance=pi r = 22/7(7)=22cm

displacement=diameter of the semicircle=7+7=14

speed=distance/t=22/11=2cm/s

velocity=displacenent/t=14/11cm/s

4 velocity =18m/s

[18(60)(60)/1000]km/hr=324/5km/hr=64.8km/hr

hope,this will help u

if u have any doubt, u can ask