Question

who ever sends correct answer for the following numericles
within 1 day will be marked as brainlest ​

Answer 1

Answer:

niche solution dia to hua hai

Answer 2

Answer:

Retardation = 2 m/s²  

Distance traveled = 25 m  

Step-by-step explanation :  

Given,  

u = 36 km/h  

= ( 36 *5/18 ) m/s = 10m/s  

v = 0  

t = 5sec

 

( i ) retardation of the car  

We know,  

v = u + at  

Substituting the values,

0 = 10 + a*5  

0 = 10 + 5a  

5a = -10  

a = -10 / 5  

a= -2 m/s²

Acceleration = -2 m/s²  

Since acceleration is negative,  

retardation = 2 m/s²

 

( ii )  distance travelled before it is stopped after applying the brakes  

We know,  

S = ut + 1/2 at²  

Substituting the values,  

S = 10*5 + 1/2 * (-2) * (5)²  

S = 50 + 1/2* (-2) * 25  

S = 50 + 1/2* (-50)  

S = 50+ (-25)  

S = 25m  

So, Distance traveled = 25 m  

Hence,  

Retardation = 2 m/s²  

Distance traveled = 25 m