Part A A railroad flatcar is traveling to the right at a speed of 13.0 m/s relative to an observer standing on the ground. Someone is riding a motor scooter on the flatcar (Figure 1). What is the magnitude of the velocity of the motor scooter relative to the flatcar if its velocity relative to the observer on the ground is 18.0 m/s to the right? Express your answer using two significant figures. m/s Submit est Ans Part B What is the direction of the velocity of the motor scooter relative to the flatcar in this case? O To the right O To the left Submit est Ans Part C What is the magnitude of the velocity of the motor scooter relative to the flatcar if its velocity relative to the observer on the ground is 3.0 m/s to the left? In Submit est Ans Part D What is the direction of the velocity of the motor scooter relative to the flatcar in this case? O To the right To the left Submit est Ans Part E What is the magnitude of the velocity of the motor scooter relative to the flatcar if its velocity relative to the observer on the ground is zero? Figure 1 of 1 m/s Submit est Answer -130ms Part F What is the direction of the velocity of the motor scooter relative to the flatcar in this case? O To the right O To the left Submit est Answer

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You ride in a boat on a river flowing at 1.9 m/s (in the negative y direction). Suppose you would like the boat to move directly across the river (in the positive x direction) with speed of 5.2 m/s. Part A What is the corresponding speed of the boat's velocity relative to the water? Express your answer to two significant figures and include appropriate units. HA ? Value Units Submit Request Answer Part B What is the corresponding direction of the boat's velocity relative to the water (i.e. from the positive x direction)? Express your answer to two significant figures and include appropriate units. HA ? Value Units

Please answer parts b-d

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I can’t seem to figure this out, especially part c. Thanks!

A remote-controlled car is moving in a vacant parking lot. The velocity of the car as a function of time is given by = [5.00 m/s - (0.0180 m/s³)t²] i + [2.00 m/s + (0.550 m/s²)t]j. v = 7.00 Submit Previous Answers ✓ Correct Part D What is the direction (in degrees counterclockwise from +-axis) of the velocity of the car at t = 6.50 s? Express your answer in degrees. 0₂ = 52.7 ° Submit ✓ Part E a = Previous Answers Correct What is the magnitude of the acceleration of the car at t = 6.50 s? Express your answer with the appropriate units. 0.357 Submit μÀ m S ? Check the units used in your calculation; the numerical value you reached does not appear to have dimensions of acceleration. No credit lost. Try again. Previous Answers Request Answer

Huck Finn walks at a speed of 0.60 m/s across his raft (that is, he walks perpendicular to the raft's motion relative to the shore). The raft is traveling down the Mississippi River at a speed of 1.77 m/s relative to the river bank (see the figure (Figure 1)). Figure 10.60 m/s River 1 of 1 Y ▼ Part A What is Huck's velocity (speed and direction) relative to the river bank? Express your answer to three significant figures and include the appropriate units. Submit Part B 0- Submit Value μA Provide Feedback Request Answer Value ħ Express your answer to three significant figures and include the appropriate units. μA Units Request Answer d C F Units ? ? from the right horizontal direction

Part A A cannon tilted up at a 29.0 ° angle fires a cannon ball at 68.0 m/s from atop a 10.0 m -high fortress wall. What is the ball's impact speed on the ground below? ΑΣφ ? Vf = m/s Submit Previous Answers Request Answer

Part C What is the ball's impact speed? Express your answer to two significant figures and include the appropriate units. HÁ ? Value Units Submit Request Answer