Part A A river flows due south with a speed of 2.2 m/s. A man steers a motorboat across the river, his velocity relative to the water is 3.8 m/s due east. The river is 710 Im wide. What is the magnitude of his velocity relative to the earth? Express your answer using two significant figures. m/s Submit est Ans Part B What is the direction of his velocity relative to the earth? Express your answer using two significant figures. between his velocity and the direction to the east Submit est Answer PartC How much time is required to cross the river? Express your answer using two significant figures. Submit est Answer Part D How far south of his starting point will he reach the opposite bank? Express your answer using two significant figures. In Submit est Answer

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A river flows due south with a speed of 2.8 m/s. A man steers a motorboat across the river; his velocity relative to the water is 4.9 m/s due east. The river is 600 mm wide. a-What is the magnitude of his velocity relative to the earth? b-What is the direction of his velocity relative to the earth? c-How much time is required to cross the river? d-How far south of his starting point will he reach the opposite bank?

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A baseball hit just above the ground leaves the bat at 32 m/s at 45° above the horizontal. ▼ Part A How far away does the ball strike the ground? Express your answer to two significant figures and include the appropriate units. TR= H μА Value Submit Request Answer Units < Return to Assignment Provide Feedback ?

Part A Constan A projectile is fired from point 0 at the edge of a cliff, with initial velocity components of vox 60.0 ms and var 175 m/s, as shown in the figure. The projectile rises and then falls into the sea at point P The time of flight of the projectile is 400s, and it experiences no appreciable air resistance in flight. What is the magnitude of the velocity of the projectile 210s nfter it is fired? -D→ A projectile fired from the edge of a cliff. Express your answer with the appropriate units. -> Value Submit Request Answer Units Next>> SHIPM 6/12/00N

3. Penny drops a leaf into the water which runs east downstream. She measures the distance the leaf travels as 3.0 meters in 9.0 seconds. Penny then swims across the river, orienting herself perpendicular to the water, and lets the river current carry her downstream. She swims across the 57 m wide river in 47 seconds. a. Sketch the overall vectors of the velocities of the person to the water, the water to the ground and the person to the ground. Write the equation for the velocity of the person relative to the ground with the appropriate subscripts b. Determine the velocity of the water in the river relative to the ground. c. How far downstream will Olaf drift?" d. Determine the velocity of the person relative to the water (with direction) e. Determine the velocity of the person relative to the ground (with direction).

r The speed of a boat in still water is V. A river flows with a speed of v₁. The boat travels distance of 14 miles downstream in a river in 1 hour. However, the return journey takes 2 hours. Calculate the V and V₁. Hint: Velocity = displacement/time. Displacement can be positive of neagtive depending on the direction. You will first need to set up the equations by taking into account the resultant velocity of the boat in flowing water. Consider the direction the river is flowing to be positive. Set up two equations, one for the downstream journey and one for the upstream journey, in terms of "V" and "v": Do V" and "v, add or substract downstream to give the resultant downstream velocity? Do v" and "v, add or substract upstream togive the resultant upstream velocity? Use the upstream direction as negative. The resultant upstream velocity should be negative. Equation 1 (downstream): Equation 2 (upstream): Solve for: V₁² vb Write an algebraic expression; do not use numerical values except…

You have exactly 4 minutes 26 seconds to get to your next class on time and that classroom is 216 m east of where you are right now. First you run to your dorm room at an average velocity of 5.42 m/s to the south to pick up your calculator and your dorm room is 332 m south of where you were initially. What average velocity (magnitude only) do you now need to run from your dorm room to your classroom to arrive exactly on time?   a. 1.49 m/s   b. 5.42 m/s   c. 1.93 m/s   d. 2.06 m/s

An object is moving counter-clockwise in uniform circular motion at a constant speed of 3 m/s in a circle of radius 1.2 m. The magnitude of radial acceleration is 7.5 m/s?. Point A is at an angle of 15 degrees from the x axis. Sketching the position, velocity, and acceleration vectors may be helpful. A. Calculate the x and y components of the position vector for point A. B. Calculate the x and y components of the velocity vector for point A. C. Calculate the x and y components of the acceleration vector for point A. +y A +x 15° (0,0)