A bicycle generator creates a 3 . 0 V , when the bicycle is travelling a speed of `9.0 kmh ^(-1)` . How much emf is generated when the bieycls is travelling a `15 kmh^(-1)`.

A car is travelling at the average speed of 50 km/hr. How much distance would it travel in 1 hour 12 minutes?

A car is travelling at an average speed of 60 km per hour. How much distance will it cover in 1 hour 12 minutes?

A bicycle has tyres of radius 0.35 meters. If the bicycle is traveling at a constant speed of 12 m//s , at approximately what angular speed are the tyres rotating?

A bomb is dropped from an aeroplane when it is directly above a target at a height of 1000m. The aeroplane is moving horizontally with a speed of 500 kmh^(-1) . By how much distance will the bomb miss the target ?

Two tourist A and B who are at a distance of 40 km from their camp must reach it together in the shortest possible time. They have one bicycle and they decide to use it in turn. ‘A’ started walking at a speed of 5 km hr^(1) and B moved on the bicycle at a speed of 15 km hr^(1) . After moving certain distance B left the bicycle and walked the remaining distance. A, on reaching near the bicycle, picks it up and covers the remaining distance riding it. Both reached the camp together. (a) Find the average speed of each tourist. (b) How long was the bicycle left unused?

On a 60 km track, a train travels the first 30 km with a uniform speed of 30 kmh^(-1) . How fast must the train travel the next 30 km so as to average 40 kmh^(-1) for the entire trip ?

A car travels first half distance between two places with a speed of 60 kmh^(-1) . What should be its speed for rest half of the distance so that its average speed becomes 90 kmh ^(-1) ?

A car travelling with a velocity of 50 km h^-1 on a straight road is ahead of a motor-cycle travelling with a speed of 75 kmh^-1 . How would the relative velocity be altered if motor cycle is ahead of car ?