A cyclist rides steadily at 12 km/h for half an hour. How far does she travel?
A3 km
B6 km
C24 km
D12 km
Answer & Solution
Correct answer: B. 6 km
Distance is speed times time, and 12 km/h for 0.5 h gives 6 km.
Keep practising Motion and time
Browse all Motion and time questions for Olympiad (Class 7), or explore more Science topics.
Related questions
A body's distance is doubled and its time is halved. By what factor does its speed change?A vehicle covers 1 km every minute. What is its speed in km/h?Why were mercury and gridiron pendulums invented in the 1700s?Why must a pendulum clock be fixed firmly to a sturdy wall?What is the SI unit of the period of a pendulum?A pendulum makes 20 oscillations in 40 s. What is its period?A pendulum takes 2 s per oscillation. How many oscillations occur in 1 minute?What replaced pendulum clocks as the world's best timekeepers?