6. A major leaguer hits a baseball so that it leaves the bat at a speed of 30.0 m/sand at an angle of 36.9° above the horizontal. You can ignore air resistance.(a) At what two times is the baseball at a height of 10 m above the point atwhich it left the bat? (b) Calculate the horizontal and vertical components ofthe baseball's velocity at each of the two times calculated in part (a). (c)What are the magnitude and direction of the baseball's velocity when itreturns to the level at which it left the bat?

Answered: Image /qna-images/answer/c071df05-c485-4cef-9f0a-07e1fd7dca2e.jpg

Answered: A major leaguer hits a baseball so that…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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A person tossed a headball up at an initial rate of movement of 15 m / s, and it rose and fell, and that person met it again. Find 1. How high does the ball reach? 2. What was her speed at the moment prior to being caught 3. How much time did the ball spend in the air?
A team of jubliant engineering students, celebrating winning a designcompetition, fires their potato gun straight up into the air. (a) Assuming a quadratic airdrag on the potato with magnitude F (v) = mkv^2, and taking +y to be the upward direction,show that the potato speed varies with height above the ground according to the equations:
A horizontal water jet of constant velocity V impinges normally on a vertical flat plate and splashes off the sides in the vertical plane. The plate is moving toward the oncoming water jet with velocity 1/2V. If a force F is required to maintain the plate stationary, how much force is required to move the plate toward the water jet?
A steel wire connects two trains at rest on the same track. The wire will snapif it is stretched by as much as 1 percent. The trains begin to accelerate in such away that their velocities, as measured in the ground frame, are always equal.Eventually, the wire snaps. Explain carefully why this happens. How fast are thetrains moving when the wire snaps?
A jet of water whose diameter is 5cm strikes a fixed cup with a velocity of 9.45m/s and is deflected by 165 degree. The jet leaves with a velocity of 30m/s . if the cup offers a reactive force of 26.5N to the jet when the flow rate was 980 N/min. Determine the ratio of a) Actual to theoretical forces of the jet. b) Velocities at outlet and inlet. Assume any missing data.
A box of mass 80 kg is moving at a speed of 10 m/s on a ropeway. If the box is 40 m above the ground level, estimate the potential energy and kinetic energy of the box.
A professional baseball pitcher can project a baseball atca speed as high as 35 m/s. 1.If air resistance can be ignored, how high in metres would a baseball launched at this speed rise if projected straight up? 2.How long would the baseball be in the air (in seconds)
A model rocket has engine with an average thrust of 2.82 N. The rocket mass is 71.5 g, which includes fuel mass 27.3 g. The duration of fuel burning is 2.52 s. What is the final speed vf of this rocket if it were to be fired from International Space Station with initial speed vi=7660 m/s? Assume the fuel burns at a constant rate.
An airplane heads due north with a velocity of 250 mi/hr. A west windis blowing with a velocity of 40 mi/hr. What is the velocity of the airplanerelative to the ground?
A chemical storage tank ruptures at a point 2 m hove the ground. Chemical leaves the tank in a jet inclined at 15 degrees to the horizontal, travelling at 10 m/s. If the flight of the chemical is ballistic and effects of air resistance are ignored, how far from the base of the tank does the jet reach? (Take g = 9.8 m/S^2). (A) 9.23 m (B) 5.10 m (C) There is not enough information to calculate the answer D) 7.61 m
A 3-in-diameter horizontal jet of water, with velocity 140 ft/s, strikes a bent plate, which deflects the water by 135° from its original direction. How much force is required to hold the plate against the water stream and what is its direction? Disregard frictional and gravitational effects.
A 5-cm-diameter horizontal jet of water with a velocity of 30 m/s relative to the ground strikes a flat plate that is moving in the same direction as the jet at a velocity of 20 m/s. The water splatters in all directions in the plane of the plate. How much force does the water stream exert on the plate?

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