You are studying the effect of the force of a rubber band onyour friend sitting in a shopping cart. You have fixed the 125kg cart (cart with your friend and groceries) with a rubber bandto the shelf with the dog food and push your friend and the cartaway from the shelf with a speed of 5.0 m/s. The force versustime curve for the rubber band is shown in the figure.a. At what speed is the cart with your friend rolling backtowards the shelf?b. Is your result reasonable?Force (N)3000-2000-1000000.40.8Time (s)1.21.6.

To determine the speed at which the cart rolls back towards the shelf, we must analyze the problem…

Answered: You are studying the effect of the…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Similar questions

The figure shows a train traveling at a constant uniform velocity of 75 kph and a car travelling at a speed of 36 kph towards point 0. A. Which of the following gives the nearest value of the acceleration of the car, if the car reaches point 0, 10 seconds ahead than that of the train. B. If the train moves at a uniform velocity, which of the following gives nearest value of the required time for the train to reach the point 0. C. Using the acceleration computed, which of the following gives the value of the velocity of the car at the collision point.
1.
A construction worker pulls a five-meter plank up the side of a building under construction by means of a rope tied to one end of the plank (see figure). Assume the opposite end of the plank follows a path perpendicular to the wall of the building and the worker pulls the rope at a rate of 0.26 meter per second. How fast is the end of the plank sliding along the ground when it is 1.2 meters from the wall of the building? (Round your answer to two decimal places.) 5m X m/sec
SITUATION 3: A system of block is interconnected with each other as shown in the figure. If the coefficient of kinetic friction under block A is 0.30, and under block B is 0.20, find the: 7. Acceleration of the system. 8. The tension in the cord supporting block A. 9. The tension in the cord supporting blocks A and B. 200KN 500KN 100KN
A grindstone in the shape of a solid disk with diameter 0.520 m and a mass of 50.0 kg is rotating at 850 rev/min. You press an axe against the rim with a normal force of 160 N (see Figure below), and the grindstone comes to rest in 7.50 s. What is the moment of inertia of the grindstone? What force is bringing the grindstone to a stop? What is the net torque caused by that force? What is the size of the force? What is the coefficient of friction between the axe and the grindstone?
The figure shown a motor pulling an object in an in clined surface determine the power required to move the object at a constant speed of 3.5m/s. The coefficient of friction between the object and the inclined surface is 0.20.
An open rectangular tank mounted on a truck is 7m long, 2m wide and 3m high is filled with water to a depth of 2m. a) What maximum horizontal acceleration can be imposed on the tank without spilling any water? in m/s^2 b)Determine the accelerating force on the liquid mass. c). If the acceleration is increased to 6 m/s, how much water is spilled out?
Rear Raised Standard 0.6 m 0.4 m 1.3 m 1.6 m 1.3 m 1.6 m Car image from YouTube.com Newton's Laws (Rigid Bodies): In an attempt to make her car accelerate faster, a drag racer has raised the rear of her car to increase the centre of gravity by 0.2 m. The shift in the horizontal location of the centre of gravity is negligible. The car has a mass of 1600 kg and the coefficient of friction is 0.3. The car is rear wheel drive. The front wheels roll freely. Neglect the mass of the wheels. Neglect the suspension deflection. Assume the front wheels stay on the ground. What is the change in maximum acceleration as a percentage taking the unraised car as the reference?
In the figure, two blocks are attached to each other by a massless string that is wrapped around a frictionless pulley.
In a boat race, boat A is leading boat B by 50m and both are traveling at a constant speed of180 km/h. At t=0, the boats accelerate at constant rates. Knowing that when B passes A, t=8s and vA= 225 km/h, determine (a) the acceleration of A, (b) the acceleration of B.
A boy throws a paper airplane. It follows a parabolic path as shown in the figure. At the instant the paperairplane is 2 meters horizontally and 1 m vertically away from the boy, it was observed that it was flyingat a speed of 1.5 m/s and is speeding up by 0.2 m/s^2 (due to the wind). Determine the totalacceleration/deceleration of the paper airplane at this instant.

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