Part A Starting from a pillar, you run a distance 200 m east (the +x-direction) at an average speed of 5.0 m/s, and then run a distance 280 m west at an average speed of 4.0 m/s tò a post. Calculate your average speed from pillar to post. Express your answer using two significant figures. s/w Submit Request Answer Part B Calculate your average velocity from pillar to post. Express your answer using two significant figures. î m/s Submit Request Answer Part A Earthquakes produce several types of shock waves. The most well-k are the P-waves (P for primary or pressure) and the S-waves (S for secondary or shear). In If the time delay is 33 s, how far from the seismic station did the earthquake occur? while the S-waves move at about 3.5 km/s. The actual S. speeds vary depending on the type of material they are going throu The time delay between the arrival of Express your answer using two significant figures. these two waves at a seismic recording station tells geologists how far away the earthquake occurred. || ? km Submit Request Answer Provide Feedback

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 ?

9 ΔΔΔ Δ Δ ΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΑ What is the approximate total displacement based on the graph below? use 2 sfs. Approximate the values on each axis to the best of your ability. 560 (velocity mis 50 2240 30 P 10 123 I 3 4 5 Time (s) 1 678 9 2

When the motorcyclist is at A, he increases his speed along the vertical circular path at the rate of v = (0.04s) ft/s² where s is in ft. Take p = 270 ft. ▼ Part A V If he starts at V₁ = 2 ft/s where s = 0 at A, determine the magnitude of his velocity when he reaches B. = Express your answer to three significant figures and include the appropriate units. μÅ Value Units Submit Part B = P 0 O μà 60° Submit Also, what is his initial acceleration? Express your answer to three significant figures and include the appropriate units. Value Units Request Answer P Request Answer ? ?

You shoot an arrow into the air. Two seconds later (2.00 s) the arrow has gone straight upward to a height of 31.0 m above its launch point. Part A What was the arrow's initial speed? V ΑΣφ vo = m/s Submit Request Answer

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 ? S

Part A At an air show, a jet plane has velocity components v₂ = 725 km/h and v₁ = 455 km/h at time 4.85 s and v = 843 km/h and vy = 385 km/h at time 7.47 s. For this time interval, find the component of the plane's average acceleration. ΑΣΦ ax = 45.04 ? km/h² You have already submitted this answer. Enter a new answer. No credit lost. Try again. Submit Previous Answers Request Answer Part B For this time interval, find the y component of the plane's average acceleration. ΑΣΦ ay = -26.72 Submit Previous Answers Request Answer × Incorrect; Try Again Part C ? km/h² For this time interval, find the magnitude of its average acceleration. a = ΑΣΦ Submit Request Answer Part D ? km/h² For this time interval, find the direction of its average acceleration. θα ΑΣΦ ? ° clockwise from +x axis

You'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 27

2. V A particle moves according to the equation ¤ = 10t², where is in meters and t is in seconds. (a) Find the average velocity for the time interval from 2.00 s to 3.00 s. (b) Find the average velocity for the time interval from 2.00 to 2.10 s.

A 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