NEET-PH- Motion in a straight line – Mock test -1

A car moves a distance of 200 m. It covers the first half of the distance at speed 40 km/h and the second half of distance at speed $\nu$. The average speed is 48 km/h. The value of $\nu$ is

A car runs at a constant speed on a circular track of radius 100 m, taking 62.8 seconds for every circular lap. The average velocity and average speed for each circular lap respectively is

A car covers the first half of the distance between two places at 40 km/h and another half at 60 km/h. The average speed of the car is

A bus travelling the first one-third distance at a speed of 10 km/h, the next one-third at 20 km/h and at last one-third at 60 km/h. The average speed of the bus is

A particle covers half of its total distance with speed $\nu_{1}$ and the rest half distance with speed $\nu_2.$ Its average speed during the complete journey is (2002)

A car moves from $X$ to $Y$ with a uniform speed $\nu_{u}$ and returns to $X$ with a uniform speed $\nu_d.$ The average speed for this round trip is (2007)