A particle describes a trajectory r=a(1+cos ☺) under the action of a central force. find said force
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A: Given data, A=-4.93 i^-2.99 j^ B¯=-1.2 i^-4.07 j^
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- consider two vectors : A=4i+6j+2k B=-2i-4j+0k find A+B and it's directionDanielle launches a ball off of a platform of height h with velocity vo at an angle 0 above the horizontal. A wall with a ball-sized hole a height H above the floor, with H > h, is a horizontal distance L = 24.0 m away from Danielle. The difference in height between H and h is one-twelfth of L, and the square of the magnitude of the velocity, v, is three-halves of the product gL. H 1 H – h = h 3 L Determine the two values of 0 that ensure the ball passes through the hole. Submit the larger angle as 0, and the smaller angle as 02.A playground is on the flat roof of a city school, h, - 6.30 m above the street below (see figure). The vertical wall of the building is h= 7.50 m high, to form a 1.2-m-high railing around the playground. A ball has fallen to the street below, and a passerby returns it by launching it at an angle of e = 53.0° above the horizontal at a point d = 24.0 m from the base of the building wall. The ball takes 2.20 s to reach a point vertically above the wall. (a) Find the speed at which the ball was launched. m/s (b) Find the vertical distance by which the ball clears the wall. (c) Find the horizontal distance from the wall to the point on the roof where the ball lands.
- A projectile is fired up an inclined plane (incline angle α) with an initial speed v0 at an angle β with respect to the horizontal (β > α) Let d denote the distance the projectile travels up the incline.a) Express d in terms of α, β, v0 and g.b) For what value of β is d maximal, and what is the maximum value of d?Given vectors, F=20.0 m at 60° and G=10.0 m at 30°, find F + G.In my homework, I am asked to derive an equation for V0. The homework question is as follows: A howitzer fires a shell with a velocity of v0 at an angle Θ above the horizontal. The howitzer is on a plateau and the shell lands down in the plain below, a vertical distance d below the plateau and a horizontal distance L from where the howitzer is. Derive an expression for the magnitude of the initial velocity, V0, as a function of d, L, g, and Θ. Any help would be appreciated as I have worked on this problem for quite a while and I am not making progress.
- Question 013A: Complete the following question involving vectors and net force. A boat travels towards the northeast at 23 knots, and there is an 8 knot crosswind out of the southeast affecting the boat. Convert the boat's motion (not the crosswind) into rectangular coordinates (aka: convert into "X" and "y"). O x = -16.26 y = -16.26 O x = 16.26 y = 16.26 O x = 0 y = 23 x = 16.26 y = -16.26 QUESTION 14 Question 013B: Complete the following question involving vectors and net force. A boat travels towards the northeast at 23 knots, and there is an 8 knot crosswind out of the southeast affecting the boat. Convert the crosswind (not the boat) into rectangular coordinates (aka: convert into "x" and "y"). O x = 5.66 y = -5.66 O x = -4 y = 4 O x = -5.66 у--5.66 O x = -5.66 y = 5.66Given three force vectors P, Q and R where: P = 300 N ? Q = 400 N ? R = 500 N ? what's the unite vector alpha?