Activity 3. A man threw a piece of stone and hit a bird perched on top of a pole. A stone was thrown at P with a velocity of 24 m/s. If the pole is 14 m high and P is 1.5 m from the ground and 6.7 m from the pole, at what angle did the stone leave the man's hand? (Draw the figure) (Ans. 0, = 65.26° ; value of 8 as in your figure) (Ans. 02 = 86.27° ; value of 0 where the stone was falling down when it hit the bird) %3D

Activity 3. A man threw a piece of stone and hit a bird perched on top of a pole. A stone was thrown at P with a velocity of 24 m/s. If the pole is 14 m high and P is 1.5 m from the ground and 6.7 m from the pole, at what angle did the stone leave the man's hand? (Draw the figure) (Ans. 0, = 65.26° ; value of 8 as in your figure) (Ans. 02 = 86.27° ; value of 0 where the stone was falling down when it hit the bird) %3D

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

A man threw a piece of stone and hit a bird perched on top of a pole. A stone was thrown at P with a velocity of 24 m/s. If the pole is 14 m high and P is 1.5 m from the ground and 6.7 m from the pole, at what angle did the stone leave the man’s hand? (Draw the figure)
A volleyball is hit when it is 4 ft above the groundand 12 ft from a 6-ft-high net. It leaves the point of impact withan initial velocity of 35 ft / sec at an angle of 27 and slips by theopposing team untouched. Suppose that the net is raised to 8 ft. Does this change things? Explain.
W:32) Projectile Motion >Find the total time of flight of a ball that is shot from 5 m and has a rim height of 10ft if you are5ft 6 inches tall? >Find the initial velocity and angle of the ball when a 5ft tall boy shots it from a distance of 20ftfrom the ring and have the highest point in 15 ft and the rim is 10ft above the ground? ( m/s )
Find the total rebound distance of a ball that is dropped from height of 7 m,with each rebound three-fifths of the preceding one.
An electric motor M is used to reel in cable and hoist a bicycle into the ceiling space of a garage. Pulleys are fastened to the bicycle frame with hooks at locations A and B, and the motor can reel in cable at a steady rate of 20 in./sec. At this rate, how long will it take to hoist the bicycle 7.9 feet into the air? Assume that the bicycle remains level.
4. A concrete weight of 125 kg is released from standstill and a log of mass 200 kg is moved along an inclined area of 30° to the horizontal.When the concrete weight is moved down 5 m, find that 1. What is the speed of the log? 2. What is the movement time of the concrete drum?
When a volleyball coach releases a volleyball from a height of 2 m above the gym floor, it falls to the floor and bounces back to two-thirds the same height. When it is in contact with the floor, the lower side of the ball is temporarily flattened. Suppose the maximum depth of the dent is 1 cm. (Assume the positive direction is upward.)1. Determine the acceleration of the ball (in m/s2) while it is in contact with the floor and compressing. (Indicate the direction with the sign of your answer.) 2. Determine the velocity of the ball (in m/s) as it leaves the floor on the rebound. (Indicate the direction with the sign of your answer.) 3. What If? If instead of dropping the ball, the coach throws it down (from some unknown height) with such a speed that it bounces back up to a height three times its original height, determine the new acceleration of the ball (in m/s2) while in contact with the floor and expanding. (Indicate the direction with the sign of your answer.)
PROBLEM 5 A cannon with a muzzle speed of 1 000 m/s is used to start an avalanche on a mountain slope. The target is 2 000 m from the cannon horizontally and 800 m above the cannon. At what angle, above the horizontal, should the cannon be fired?
A villain in a car traveling at 30 m/s fires a projectile along the direction of motion toward the front of the car with a launch speed of 50 m/s relative to the car. A hero standing nearby observes the projectile to travel straight up. What was the launch angle as viewed by the villain? What height does the projectile attain?
CURVILINEAR: Cheezy placed an order for 16 cubic meters of sand. The sand was ejected from a dump truck at a 50-degree angle, with an initial velocity of 2 feet per second. Calculate the radius of curvature of the trajectory at the direction point 1m below point A. with Illustration
The track for this racing event was designed so that riders jump off the slope at 35°, from a height of 2.25 m. During a race it was observed that the rider shown in Figure below remained in mid air for 0.75 s. Determine the speed at which he was traveling off the ramp, the horizontal distance he travels before striking the ground, and the maximum height he attains. Neglect the size of the bike and rider.
A. Estimate the typical maximum horizontal distance that a person can throw a baseball. (Answer: 40m) B. Based on your estimate from part A. What is the speed of the baseball as it leaves the hand? v0= ? (m/s) C. If you could throw the baseball straight up at the same speed as in part B, how high would it go? hmax = ? D. The value of g on Venus is 8.9 m/s2. What horizontal distance can you throw a baseball on Venus if you throw it with the same initial speed as in part B? Rmax=?