7. State Newton's Law of Motion. An object is drop from a helicopter and strikes the ground12 seconds later. Determine the height of the helicopter and velocity with which the bodystrikes the ground. If a second object had been projected upwards from the ground with avelocity of 200m/s at the same instant as the first object was dropped from the helicopter.Determine where and when they would meet.

Given time taken to reach the ground (t) = 12 sLet h be the height of the helicopter from which the…

Answered: 7. State Newton's Law of Motion. An…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

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2. At the figure shown, object A and B was released at the same time. Object A has an initial velocity of 3m/s . If object A and B strikes each other at a horizontal distance of 30m, detemine (a) initial velocity of B (b) time when the two objects reached the ground (c) vertical distance at which particle A is launched. A 45° aa = 1m/s² ag = 0.5m/s² B 60°
A stone is thrown vertically upward from the ground with a velocity of 48.3ft/sec. One second later, another stone is thrown vertically upward with avelocity of 96.6 ft/sec. How far above the ground will the stones be at thesame level?The car is traveling at 48 km/h when the traffic light 90 mahead turns yellow. The driver takes one second to reactbefore he applies the brakes.(a) After he applies the brakes, what constant rate ofdeceleration will cause the car to come to a stop just asit reached the light?(b) How long does it take the car to travel the 90 m? Pls show complete handwritten solution, including all the pertinent solutions. Thanksss! ❤️
Q4 2. A ball is launched with an initial velocity of Vo = 4.5 m/s from point P at a 30° sloped surface with an angle of 0. The ball lands at point B, which is 0.6 m higher than point A. Determine the launch angle 0 of the ball, the impact velocity at B (vB), the angle vg makes with the horizontal and the duration of the flight. Also determine the radius of curvature of the path and the rate of change of the speed of the ball at point C, where its trajectory makes an angle of 60° with the negative x-axis. g 9.81 m/s-.
P2. A ball is kicked from the origin with an initial speed of v1, = 25.0 m/s, at an angle 0 with the horizontal. At the same time, a second ball is thrown vertically upward from the ground at point P, at x, = 40.0 m with an initial speed of v, = 15.0 m/s as shown in the figure below. Assume that both balls are shot at time t= 0 a) If the two balls are to hit each other, what must 0 be? b) At what time the two balls will hit each other? y 40 m
Motion
A particle of mass m is projected from Point A with an initial velocity v, = 600 m/s perpendicular to line OA and moves under a central force F directed away from the center of force 0. The particle follows a path defined by the equation r = v of the particle when 0= 30°. 50 . Determine the radial and transverse components of the velocity 1- sin 0 A ro = 50 m
A golf ball is struck from A with a velocity Va=7 ft/s as shown bellow. VA B 45° 10° Determine: 1. the distance d at which it will land (put your answer in the cell bellow) 2. the speed at which it strikes the ground at B, this answer must be on your hand-written work 3. the time of the flight from A to B, this answer must be on your hand- written work
3. A ball is thrown so that it just clears a 10 ft fence 60 feet away. If the ball If the ball left the hand 5 ft. above the ground at an angle of 60° to the horizontal, what was the initial velocity of the ball?
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?
Ariana Grande and Taylor Swift rides on the cart box A and B respectively as shown below. The combined weight of Ariana and the cart box A is 250 lbs and the combined weight of Taylor and the cart box B is 650 lbs. The velocity attained of Taylor Swift and Ariana Grande after cart box A moves a distance of 16 ft starting from rest is m/s and m/s respectively. 250# 650# 4 Mk= 0.20 3 2.
4) Will was leisurely flying his F-18 when he encountered an alien aircraft. The alien was flying at an altitude of 3 km while Will was at an altitude of 600 m. Will begins to increase his speed at a rate of 2.0 m/s each second. Will is traveling at a speed of 750 km/h at the instant when = 45° and at the same instant at this same instant if the alien has a constant velocity of 1,500 km/h. Calculate the following: a) Determine the velocity and acceleration vectors (in m/s and m/s2, respectively) of the alien as observed by Will. [Ans. to Check: VB/A = 208.3 i m/s] b) Determine the time rate of change of the vector r that is between Will and the alien ship in m/s. In other words, find r. [Ans. to Check: r = 147.32 m/s] c) Calculate the angular velocity of the space ship relative to Will in rad/s. d) Determine the radial and angular accelerations in m/s² and rad/s². [Ans. to Check: * = 4.86 m/s²] Ꮎ VB 600 m 3 km
A body above the surface of the earth is pulled toward the center of the earth with a forceproportional to the reciprocal of the square of the distance of the body from the center. If the radiusof the earth is 6375 km, find the velocity of the body as it strikes the surface of the earth if it fallsfrom rest at a distance four times the earth’s radius measured from the center of the earth. What isthe velocity if it falls from an infinite distance?

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