Answer the shopping cart had a velocity of 3 m/s as it moved across the parking lot.
Step-by-step explanation:
The time taken for this displacement is 5.2 seconds. So, the velocity of the shopping cart can be estimated by the above mentioned relation as, velocity of shopping cart = 15.6 m / 5.2 s = 3 m/s.
7/8 because 3/4 = 6/8, and 7/8 is bigger than 6/8
The train will have been traveling for 4 hours
train A=45,90,135, 180
train B=0,60,120,180