A cyclist rides at a steady 5 m/s. How long does she need for 1 km?
A5 s
B200 s
C500 s
D20 s
Answer & Solution
Correct answer: B. 200 s
1 km is 1000 m, and 1000 m divided by 5 m/s is 200 s.
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?