Question

a car is moving the speed of 40 km per hour and tax rate of 20 km per hour find the value of the final velocity after 35 second​

Answer 1

Answer:

Below is the answer

Step-by-step explanation:

Distance =20km

Speed =40 km/hour

Time, t1=20/40 =1/2 hrs

Speed =60km/hour

Time,t2=20/60=1/3 hours

Total time =t1+t2=1/2+1/3=5/6 hours

Average speed =(20 +20) /(5/6)

=48 km/hrs is the answer ‼️