Free-Body Diagrams and ForcForce and MotiGuided PracticeNewton's Law, continuedScenario #3:It takes a car 10 seconds to accelerate from rest to a rate of 8 m/s. If the mass of the car is 1200kg, calculate the net force acting on a car.Free-Body DiagramFormulaCalculationsInformation© Accelerate Learning Inc. - All Rights Resert Free-Body Diagrams and Force-Force and MotioGuided PracticeNewton's Law, continuedCarefully read each scenario. Create a free-body diagram displaying all the forces on the object.Solve the answer.Scenario #1:A man is pushing a box that has a mass of 50 kg across the floor. If the man's acceleration is .5m/s?, what was the amount force he was using to move the box?Free-Body DiagramFormula and Calculations:Scenario #2:What is the weight of a person on Earth if they have a mass of 34 kg?Formula for Weight =Put it all together to find Weight =Correct answer for Weight =

Scenerio 3Initial velocity , u=0Final velocity , v=8 mstime takes , t=10 sec∴v=u+at…

Answered: It takes a car 10 seconds to accelerate…

It takes a car 10 seconds to accelerate from rest to a rate of 8 m/s. If the mass of the car is 1200 kg, calculate the net force acting on a car.

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter1: Introduction To Statics

Section: Chapter Questions

Problem 1.19P: Plot the earths gravitational acceleration g(m/s2) against the height h (km) above the surface of...

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Plot the earths gravitational acceleration g(m/s2) against the height h (km) above the surface of the earth.
Zorch, an archenemy of Superman, decides to slow Earth’s rotation to once per 29 h by exerting a force parallel to the equator, opposing the rotation. Superman is not immediately concerned, because he knows Zorch can only exert a force of 4.15 × 107 N. For the purposes calculations in this problem you should treat the Earth as a sphere of uniform density even though it isn't. a. How long, in seconds, must Zorch push with this force to accomplish his goal? (This period gives Superman time to devote to other villains.)
Pile drivers are heavy, metal hammer used to drive posts into the ground when constructing a building. One such pile driver with a mass of 200 kg was lifted 3 meters above the ground then released, driving a beam 8 cm into the ground. What is the speed and exerted force of the pile driver if a 60-N frictional force is exerted by the guide rails on the pile driver.
A hydraulic press is composed of two cylindrical reservoirs of R1 and R2 rays.The plungers in this press are extremely light and can move virtually frictionless and perfectly adjusted to their respective cylinders. The fluid that fills the press reservoirs is low density and can be considered incompressible. When in balance, the F2 force supported by the larger plunger is 100 times higher than the F1 force supported by the smaller one. Thus, the R2 / R1 ratio between the rays of the emboli, is worth approximately:a) 100b) 50c) 10d) 1000e) 200
Dancers experience large forces associatedwith the jumps they make. For example, when a dancer landsafter a vertical jump, the force exerted on the head by the neck mustexceed the head’s weight by enough to cause the head to slow down andcome to rest. The head is about 9.4% of a typical person’s mass. Videoanalysis of a 65 kg dancer landing after a vertical jump shows that herhead decelerates from 4.0 m>s to rest in a time of 0.20 s. Compared with the force her neck exerts on her head during the landing, the force her head exerts on her neck is (a) the same; (b) greater; (c) smaller; (d) greater during the first half of the landing and smaller during the second half of the landing.
Consider a disc of mass, M with radius 0.5 m on a slope with angle 45 degrees to the horizontal. It has a good grip on the slope and does not slip. The disc is constructed so that its mass per unit area, ρ(r) = r1/2 kg m−2, with r being the radial distance in metres from the axis of the disc. What is the equation describing the linear acceleration of the centre of mass of the disc down the slope in terms of the angular acceleration of the disc.
. To promote their new album, Black Pink decided to launch a satellite into orbit that will intercept all airwaves and play their songs worldwide. To do this, he needs to mount a 200 [kg] satellite onto an 850 [kg] rocket. It blasts off vertically from a launchpad with a constant net upward acceleration of 3.80 [m/s2]. When it has reached a height of 680 [m], the satellite was released, and the rocket blew up shortly after, due to a system failure. Assume that the satellite was not damaged after the explosion. (a) What is the maximum height that the satellite will reach above the launchpad? (b) How much time will elapse after system failure before the satellite comes crashing down the launch pad? (c) How fast will the satellite be moving just before it crashes?
A vehicle accelerates a glider of 125 kg from rest to a speed of 50 km/hr. Make calculations for the work done on the glider by the vehicle. What change would occur in the kinetic energy of the glider if subsequently its velocity reduces to 20 km/hr on the application of brakes.
An artificial pond was constructed in the local park last year by digging a hole in the shape of a perfect hemisphere of radius 2 m, and then filling it with water. Now, a year later, the pond needs cleaning, and the city workers need to pump out all of the water. In order to do so, energy must be expended to lift the water (working against gravity) from down inside the pond up to ground level. It is known that the energy, E required to lift a mass m (in kg) to a height h (in m) is given by E = mgh (where g can be taken to be 10 m/s2). You can take the density of water to be 1000 kg/m3. How much energy is required in total to pump all of the water out the pond?
Five identical boxes with the same speeds slide along a frictionless horizontal surface. The mass of each box is 10 kg. The same magnitude force, F, is applied to each box, but along different directions. Rank the five situations described here from greatest to smallest according to the work done on the box by the force while the box moves through the distance d indicated in each description. For this analysis, take motion/distance/force directed to the right as positive and force directed up as positive. If any of the situations result in the same work being done, give them the same ranking. (Use only ">" or "=" symbols. Do not include any parentheses around the letters or symbols.) F to the right, and d = 7 m to the right F to the right, and d = 18 m to the right F up, and d = 18 m to the right F to the left, and d = 7 m to the right F down, and d = 7 m to the right
Shown below are coplanar forces F1 and F2 pulling on a 1.0 - kg block which ismoving at constant speed on a horizontal surface. If the coefficient of kineticfriction between surfaces is 0.2, what is the magnitude of F2?
A poundal is the force required to accelerate a mass of 1 Ibm at a rate of 1 ft/s2, and a slug is the mass of an object that will accelerate at a rate of 1 ft/s2 when subjected to a force of 1 bf. Calculate the mass in slugs and the weight in poundals of a 175 Ibm man (i) on earth and (ii) on the moon, where the acceleration due to gravity is one-sixth of its value on earth.