Question

A car is moving with 5 m/s velocity in East direction, after some second the car turn in North direction and move with 5 m/s velocity. The car is observe for 10 second.

then find the acceleration of the car in 10 second.​

Answer 1

correct option is B.

Intial velocity=v1=5m/seast wards  

                                 

then after time t=10sec              

                                       

v2=5m/s north wards                                    

                                                                

δv=V12+V22

         =25+25

         =52

acceleration a=timevelocity

                     =1052 

                     =22×22

                     =21towards n-w

hope it helps uu

Answer 2

The acceleration of the car in 10 second:

Explanation:

• Given that initial velocity =v1=5m/s east wards, then after time t=10sec, v2=5m/s north wards                                    
• δv= √V1² + √V2² = √25 +25 = 5√2

• acceleration a= velocity/time = 5√2/10 =​ 1/√2 towards n-w.
• 1/√2 is the answer.

​