Question

please Ans this question of mechnics​

Answer 1

unable tilo understand the picture

answer is

Answer 2

Answer:

speed of moving car = 20m/s

he moved 20m ,but in next 20 m

they require to stop car

then required stopping time for car is = 40m ÷20

= 2 sec .

$<marquee>hope it's helpful for you .</marquee>$