A truck requires 3 hours to complete a journey of 150 km. What is the average speed?
Correct answer: A. 50km/hr
- A. 50km/hr
- B. 25km/hr
- C. 15km/hr
- D. 10km/hr
Explanation
Average speed = total distance / total time = 150 km / 3 hr = 50 km/h.
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Displacement, velocity and acceleration describe motion, including the horizontal and vertical components of projectile motion. The chapter connects these quantities with Newton's laws, momentum and impulse, then applies conservation of momentum to collisions, distinguishing elastic collisions from inelastic ones.
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