Question 9 5 pts The automobile shown below has a weight of 2700 lbf. It is...
The automobile shown below has a weight of 2700 lbf. It is moving at 4 ft/s when it crashes into a rigid wall. If the impact occurs in 0.06 seconds, determine the average impulsive force (in lbf) acting on the car during the collision
*15-8 The automobile has a weight of 2700 lb and is traveling forward at 4 ft/s when it crashes into the wall. If the impact occurs in 0.06s, determine the average impulsive force acting on the car. Assume the brakes are not applied. If the coefficient of kinetic friction between the wheels and the pavement is He 0.3, calculate the impulsive force on the wall if the brakes were applied during the crash. The brakes are applied to all four...
Question 9 5 pts A 0.25 lbf baseball is pitched with a velocity of 80 ft/s toward a batter. After the ball is hit by the bat B, it has a velocity of 120 ft/s in the direction shown. If the ball and bat are in contact for 0.015 seconds, determine the average impulsive force exerted on the ball (in lbf) during impact. a 120 ft/s 40° B 80 ft/s
Question 9 5 pts A 0.25 lbf baseball is pitched with a velocity of 80 ft/s toward a batter. After the ball is hit by the bat B, it has a velocity of 120 ft/s in the direction shown. If the ball and bat are in contact for 0.015 seconds, determine the average impulsive force exerted on the ball (in lbf) during impact. 120 ft/s 40° T700 B 80 ft/s
A 0.25 lbf baseball is pitched with a velocity of 80 ft/s toward a batter. After the ball is hit by the bat B, it has a velocity of 120 ft/s in the direction shown. If the ball and bat are in contact for 0.015 seconds, determine the average impulsive force exerted on the ball (in lbf) during impact. 120 fts 40° B 80 ft/s
Question 4 5 pts An automobile weighing 4000 lbf is driven down a 5 degree incline at a speed of 60 miles/hr (88 ft/s) when the brakes are applied, causing a constant total braking force of 1500 lbf. Find the distance required to stop (in feet). 182 5°
Two bumper cars collide head on. Bumper car 1 has a weight of 150 lb and is moving with a speed of 6 ft/s. Bumper car 2 has a weight of 170 lb and is moving with a speed of 4 ft/s. If no energy is lost during the collision, A) what are the velocities of the two cars after the collision? B) What is the magnitude of the average force between the two cars during the collision if it...
Answer should be 13450 lbf 5. (25 pts) The angled gate shown below should be designed to just begin opening when the total water depth is 6 ft. If the gate is constructed of a homogeneous material and hinged at the bottom as shown, what is the minimum weight of the gate needed to satisfy this condition? The width of the gate into the page) is 10 ft. resh water at 2 ft Gate standard conditions 60° Hinge 0
Question 6 7 pts A mass of 5 kg is moving across a frictionless surface at 13 m/s in the +x direction. It collides (perfectly) ELASTICALLY with a second mass of 9 kg moving in the -x or +x direction. After the collision, the 9 kg mass is moving at 3 m/s in the +x direction. If the collision took 0.03 seconds, what is the average force acting on the 5 kg mass in Newtons? It's a force, so if...
Name December 9th, 2018 Student # final test Prof. Ivan J. Baiges INGE 3032 Applied Mechanics - Dynamics PROBLEM 2 A 500 lbf reindeer (venado) goes down a 20° slope (with NO FRICTION ON THE SLOPE) from a height of 20 feet. At the bottom of the slope, the reindeer impacts a Christmas elf that has a weight of 120 lbf and is walking to the left at a speed of 3.5 ft/s when the impact occurs - determine the...