Question

write an essay about to protect tree's ??
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Answer 1

Starting from rest a car acquired a velocity of 16m/s in 4s.If mass of the cart is 3kg Find Force acting on it.Also find Distance travelled by the car .Distance covered by a car is 32 metre

Force acting on it is 12 metre

$\mathfrak \color{red}{Explaination:-}$

According to the question

It is given that

Intial velocity, u = 0m/s

Finial velocity ,v = 16m/s

Time taken,t = 4s

Mass of cart,m = 3kg

We need to calculate the force acting on it .

Firstly we calculate thr acceleration of the car..

Using kinematics Equation

v=u + at

Putting all the value we get

a= 4m/s²

So the acceleration of the car 4m/s²

As we know the force is calculated by thr product of mass and acceleration..

F=ma

Substite thr value we get

◇ F = 3×4

◇ F = 12n

Hence the force acting is 12 Newton

Now calculating the distance covered by car in given condition

Using kinematic equation

v²=u²+2as

Substitute the value we get

◇16²=0²+2×4×s

◇256=2+8

◇256=3×s

◇s=356/8

◇s=32m

Hence the distance covered by the car is 32 metre..

$\pink{Thanku}$

Answer 2

Answer:

Trees have a major contribution to the sustenance of the environment. They provide oxygen, improve air quality, maintain climate, conserve water, preserve soil, and support wildlife. Trees take in carbon dioxide during the process of photosynthesis and produce the oxygen we breathe. Without trees, we can't even imagine the existence of any living being.