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- In 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 ? SNeeds Complete solution with 100 % accuracy.2. A jet plane has a takeoff speed of vtakeoff = 73 m/s and can move along the runway at an average acceleration of 2.4 m/s2. The runway is 1.2 km. Write out the 3 Kinetic equations. a. b. Write out the values of initial position, initial velocity, and acceleration. How many seconds will it take for the plane to reach takeoff speed? с. d. How far will the plane have to travel to get to takeoff speed? will the plane be able to get to take off before it gets to the end of the runway? е.
- A particle travels along a straight line with a velocity of v = (4t — 3t²) m/s, where t is in seconds. Part A Determine the position of the particle when t = 3.6 s. s=0 when t = 0. Express your answer to three significant figures and include the appropriate units. 8 = THPA Value Submit Provide Feedback Request Answer Units ?The graph below shows the position of a car moving along a highway. Identify the labeled points where 2. F E position D, A В Time the velocity is zero the velocity is positive the velocity if negative the acceleration is zero i. ii. iii. iv. the acceleration is positive the acceleration is negative V. vi.A sprinter reaches his maximum speed in 2.8 seconds from rest with constant acceleration. He then maintains that speed and finishes the 100 yards in the overall time of 9.58 seconds. Determine his maximum speed Vmax. t = 0 t = 2.8 sec t = 9.58 sec xk t Answer: Vmax 100 yd = 11.172 ft/sec
- The position of a particle along a straight line is given by s(³ 98² +158) ft, where t is in seconds. Part A Determine maximum acceleration during the time interval 0A motorist travels 70 km at 120 km/h, and 65 km at 95 km/h. ▼ Part A What is the average speed for the trip? Express your answer using three significant figures. Uav = Dig Templates Symbols undo redo reset keyboard shortcuts help ΑΣΦΑ / C km/hQuestion 4 E The velocity of a car in m s-l can be modeled as v(t) = 0.512 + 3t for 0SEE MORE QUESTIONSRecommended textbooks for youCollege PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
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