Question

write a letter to your lounger brother advising him to take necessary frequency to stay safe from Covid - 19​

Answer 1

Answer:

Normal led to this”, wrote Ed Yong, science journalist for The Atlantic, in August. ...

“Not liking the look of this”, tweeted Helen Branswell, science journalist for statnews, on January 2. ...

"Be fast, have no regrets... ...

“It's going to disappear. ...

“With COVID-19, we've made it to the life raft. ...

Answer 2

Explanation:

Acceleration ,a = -10m/s² (opposite direction of motion)

Final velocity ,v = 0m/s

Time taken ,t = 5s

To Find:-

Distance covered by the car before coming to rest ,s

Solution:-

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀According to the Question

Firstly we calculate the initial velocity of the car . Using 1st equation of motion

v = u + at

where,

v is the final velocity

a is the acceleration

u is the initial velocity

t is the time taken

Substitute the value we get

:\implies:⟹ 0 = u + (-10) × 5

:\implies:⟹ -u = -50m/s

:\implies:⟹ u = 50m/s

So the initial velocity of the car is 50m/s

Now, calculating the final velocity of the car by using 3rd equation of motion.

v² = u² + 2as