Q4. (a) Is a car going around a curve at 50 km/hr experiencing acceleration? Explain why or why not. (b) Is a skateboard coasting down a hill at 2 m/s experiencing acceleration? Explain why or why (c) Is a car stopping at an intersection experiencing acceleration? Explain why or why not. No, is decelerating because it is stopping, the car is going in a low speed low acceleration
Q4. (a) Is a car going around a curve at 50 km/hr experiencing acceleration? Explain why or why not.
(b) Is a skateboard coasting down a hill at 2 m/s experiencing acceleration? Explain why or why
(c) Is a car stopping at an intersection experiencing acceleration? Explain why or why not. No, is decelerating because it is stopping, the car is going in a low speed low acceleration
Q8. A motorcycle starts from a standstill. In 15 seconds it reaches a velocity of 20 m/s. What is the motorcycle's average acceleration?
Q11. Polar bears are strong swimmers and can swim as long as 10 hours without rest. If a polar bear swims with an average speed of 2.6 m/s, what is the total distance it can swim in 10.0 hours? Give your answer in km.
The total distance it can swim in 10 hours is 26km.
Q12. How long does it take a baseball to travel the 18.4 m from the pitcher's mound to home plate when thrown at a speed of 34.5 m/s?
Q16. A motorcycle starts with velocity of 10 m/s then accelerates for 40 m/s2 for 2.0 seconds. What is it's final velocity?
Q17. How long does it take the minute arm on a wall clock or wrist watch to make one revolution? Measure the length of a second arm on a wall clock or wrist watch and calculate the speed of the tip of the minute arm.
it takes 60s
Q19. How long will it take an object with an average velocity of 45 m/s to travel 825 m?
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