You are 9.0 m from the door of your bus, behind the bus, when it pulls away with an acceleration of 1.0 m/s². You instantly start running toward the still-open door at 6.1 m/s. ▼ Part A How long does it take for you to reach the open door and jump in? Express your answer with the appropriate units. ► View Available Hint(s) t= Submit Part B μA Value 3 Units ? What is the maximum time you can wait before starting to run and still catch the bus? Express your answer with the appropriate units. View Available Hint(s)
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- Driving down the road at a speed of 23.9 m/s, you suddenly notice a fallen tree blocking the road a distance of 82.0 m ahead of you. You step on the brake pedal and decelerate at a constant rate. What must the magnitude of your acceleration be so that you will come to a stop 6.6 m in front of the tree? a. 3.79 m/s^2 b. 3.48 m/s^2 c. 3.22 m/s^2 d. 7.58 m/s^2I Review I Constants A particle moving along the x-axis has its velocity described by the function v. 2t? m/s, where t is in s. Its initial position is xo = 2.4 m at to = 0 s . Part A You may want to review (Pages 55 - 56) . Part B Part C At 2.2 s , what is the particle's acceleration? Express your answer with the appropriate units. HA ? Value Units a = Submit Request AnswerAt highway speeds, a particular automobile is capable of an acceleration of about 1.8 m/s². Part A At this rate, how long does it take to accelerate from 55 km/h to 120 km/h? Express your answer to two significant figures and include the appropriate units.
- A particle moves along a straight path with an acceleration of a = (4/s) m/s², where s is in meters. ▼ Part A Determine the particle's velocity when s= 7 m, if it is released from rest when s = 1 m. Express your answer three significant figures and include the appropriate units. V= Value Submit 5 Request Answer Units ?A speed skater moving across frictionless ice at 7.80 m/s hits a 4.70-m-wide patch of rough ice. She slows steadily, then continues on at 5.20 m/s. Part A What is her acceleration on the rough ice? ΑΣΦ ? m/s²In this problem, you will apply kinematic equations to a jumping flea. Take the magnitude of free-fall acceleration to be 9.80 m/s². Ignore air resistance. Part A A flea jumps straight up to a maximum height of 0.410 m. What is its initial velocity vo as it leaves the ground? Express your answer in meters per second to three significant figures. ▸ View Available Hint(s) 20 2.83 m/s Submit ✓ Correct Part B Previous Answers How long is the flea in the air from the time it jumps to the time it hits the ground? Express your answer in seconds to three significant figures. ► View Available Hint(s) time in air = Submit 1951 ΑΣΦ Previous Answers Request Answer wood ? S
- Q Next diagram shows relationship between aelocity and time of a body moving along shown path. Let me see physical touches in your answer, not just mathematical notes. O Find the average acceleration of the object during the time intervals (0-5) . (5-15) s (0-20) s i) Find the instantaneous acceleration at 2. 10s, 18s (ii) Find the displacement between (10-20) s. v (m/s) 8 6 4 2 I (s) 20 15 -2 -4 -6 -8 lYou're driving down the highway late one night at 20 m/s when a deer steps onto the road 35 m in front of you. Your reaction time before stepping on the brakes is 0.50 s, and the maximum deceleration of your car is 10 m/s². Part A How much distance is between you and the deer when you come to a stop? Express your answer in meters. ΨΗ ΑΣΦ 340 EPPINE ? Previous Answers Request Answer Submit X Incorrect; Try Again. m 27A small object moves along the x-axis with acceleration a₂ (t) = -(0.0320 m/s³) (15.0 s-t). At t=0 the object is at x = -14.0 m and has velocity Voz = 8.20 m/s. Part A What is the x-coordinate of the object when t = 10.0 s? Express your answer with the appropriate units. x= μА Value 4 m ? X Incorrect; Try Again; 2 attempts remaining
- Needs Complete solution with 100 % accuracy.When Sam drove at 9.5 m/s on university blvd, she passed her friend, Jess who was riding a bike at 5.0m/s. As Sam was passing Jess, she started to slow down while Jess kept her constant speed. So Jess caught up to Sam after 3 seconds. a.) Determine the distance traveled by Jess when she caught up to Sam.A safety measure when driving cars is to leave a separation of "3 s" with respect to the next car. This rule has made it possible to avoid many accidents. a. If a car travels at 60 km / h, what distance (in meters) will it travel in 3 seconds? Assuming there is an accident 20 m from where you are, what acceleration must you have to bring the car to a complete stop before reaching the accident?b. Repeat part a considering a speed of 90 km / hc. Repeat part a considering a speed of 120 km / hd. Repeat part a considering a speed of 150 km / h