A car travels with a constant velocity of 45 km/hr for 20s. What distance does it cover in this time?

Physics Jamb, Waec, Neco Past Questions & Answers on Speed, Velocity and Acceleration



QUESTION 3. A car travels with a constant velocity of 45 km/hr for 20s. What distance does it cover in this time? 

NECO 2005 Ans: 250m

Solutions

Velocity = 45 km/hr = 45 x 1000/60 x 60 = 45000/3600 = 450/36 = 12.5m/s

Time = 20s

Distance = ?

Distance = Velocity x Time

Distance = 12.5 x 20 

Distance = 250m