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# Physics chapters 1&2

Question | Answer |
---|---|

A bird, accelerating at a constant rate, experiences a displacement of 28 m in 11 s. What is the average velocity? | 2.5 m/s |

A railroad train travels forward along a straight track at 80.0 m/s for 1000 m and then travels at 50.0 m/s for the next 1000 m. What is the average velocity? | 61.5 m/s |

A European sports car dealer claims that his car will accelerate at a constant rate to 100 km/h in 8.00 s. If so,What is the acceleration. (Hint: First convert speed to m/s) | 3.4 m/s^2 |

A ball is pushed with an initial velocity of 4.0 m/s. The ball rolls down a hill with a constant acceleration 1.6 m/s^2. The ball reaches the bottom of the hill in 8.0 s. What is the balls velocity at the bottom of the hill? | |

A cart is given an initial velocity of 5.0 m/s and experiences a constant acceleration of 2.0 m/s^2. What is the magnitude of the cart's displacement during the first 6.0 s of it's motion? | 66 m |

A vehicle designed to operate a drag strip accelerates form zero to 30 m/s while undergoing a straight line path displacement of 45 m.What is the vehicle's acceleration if it's value may be assumed to be constant? | |

An automobile driver puts on the brakes and decelerates from 30 m/s to zero in 10.00 s. What distance does the car travel? | |

A rock is thrown straight down with an initial velocity of 14.5 m/s from a cliff. What is the rock's displacement after 2.00 s? |