A 1060 kg artillery shell is fire from the battleship. While it is in the barrel of the gun, it experiences and acceleration of 2.1x10^4m/s^2. Randomized variables M=1060 kg A=2.1x10^4m/s^2 (A) what net force is exerted on the artillery shell before it leaves a barrel of the gun in Newton’s? (B) what is the magnitude of the force exerted on the ship by the artillery shell in newtons? 

An object of mass 12.9 kg enters a rough floor with speed of 10.1 m/s. The coefficient of friction between the floor and the object is 0.30 and the object moves 2.07 m before returning to a smooth surface (frictionless). What is the velocity of the object once it returns to the smooth surface?

A flea jumps by exerting a force of Flea = -1.52 x 10-5 ĵ N straight down on the ground. A breeze blowing on the flea parallel to the ground exerts a force of = ( 10-5 î + 2.44 × 10¬5 k) N on the flea. Find the acceleration of the flea if its mass is 6.00 x 10-/ kg. Express your answer in vector form. Assume that the +x axis is to the Fwind -4.64 right, the +y axis is up along the page, and the +z axis is out of the screen towards you as shown in the figure below. -77.33i – 25.33j + 40.66k a =

The high-speed winds around a tornado can drive projectiles into trees, building walls, and even metal traffic signs. In a laboratory simulation, a standard wood toothpick was shot by pneumatic gun into an oak branch. The toothpick mass was 0.14 g, its speed before entering the branch was 221 m/s, and its penetration depth was 17 mm. If its speed was decreased at a uniform rate, what was the magnitude of the force of the branch on the toothpick?

A particle of mass 1.05 kg is subject to a force that is always pointed towards the East but whose magnitude changes linearly with time t. The magnitude of the force is given as F = 4t, and has units of newtons. Let the x-axis point towards the East. Determine the change in x-coordinate in meters of the particle Δx between t = 0 and t = 2.4 if the initial velocity is 17.5 m/s, and pointed in the same direction as the force.

2.3. A train car is sitting on a level track when a second car moves in. The second car hits the first, their hitches engage, and they move together. Both cars have equal masses of about 120 000 kg, and the second car initially has a velocity of 1.5 m/s. (a) Draw a diagram that illustrates the situation and include an arrow representing the velocity vector of the second car and a separate arrow representing ĉ, the unit vector for the coordinate system along the tracks. (b) Write vector expressions for both the velocity and momentum of the second car using at least two forms of vector notation that have been covered in class. (c) Just before the collision, what is the velocity of the center of mass of the system that includes both cars? Again, express this as a vector. (d) Just before the collision, what is the total kinetic energy of the system that includes both cars?

A car of mass 1650 kg, initially at a speed of 70km/h, crushes into a wall, if the accident lasted for 0.2 sec, what is the amount of force exerted in the car during the crash?

A 547g squirrel with a frontal surface area of 0.0145m2 falls to the ground from a 5.3m tree. Assume the density of air is 1.21kg/m3. Neglecting the drag force, what is the velocity, in meters per second, of a 56kg person after falling, from rest, by that same distance?

k A 13.00 kg particle starts from the origin at time zero. Its velocity as a function of time is given by = 10t² + 1tj where is in meters per second and t is in seconds. (Use the following as necessary: t.) V (a) Find its position as a function of time. ŕ= esc 10/³1 + ²/2 2²; 3 (b) Describe its motion qualitatively. The particle starts from rest at the origin, starts moving in the y direction, and gains speed faster and faster while turning to move more and more nearly parallel to the x axis. Score: 0.06 out of 0.06 Comment: (c) Find its acceleration as a function of time. a = 20ti + lj m/s² (d) Find the net force exerted on the particle as a function of time. F= T= (e) Find the net torque about the origin exerted on the particle as a function of time. N m X X (f) Find the angular momentum of the particle as a function of time. Ľ Need Help? Read It F1 N x (g) Find the kinetic energy of the particle as a function of time. K= x kg m²/s X (h) Find the power injected into the particle as a…

A dated box of dates, of mass 7.1 kg, is sent sliding up a frictionless ramp at an angle of 0 to the horizontal. The figure here gives, as a function of time t, the component Vy of the box's velocity along an x axis that extends directly up the ramp. What is the magnitude of the normal force on the box from the ramp? v, (m/s) 2 t (s) -2 Number T66.24 Unit N the tolerance is +/-2%- Click if you would like to Show Work for this question: Open Show Work 11:55 PM A ENG o search 4/4/2021 ASUS pause break insert delete |home prt sc 13) 2#3 backs 9. E R 近 3.