Which of the following laws of motion is related to inertia? a) First law b) Second Law c) Third Law d) Fourth Law
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Which of the following laws of motion is related to inertia?
a) First law
b) Second Law
c) Third Law
d) Fourth Law
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- Physics student Matt has just learned about Newton's 3rd law of motion. He's considering a car pulling a trailer as shown below. He thinks that since the tension force forward on the trailer is equal and opposite to the tension force backwards on the car, the net force on the car must be zero and therefore the car can't accelerate. Which one (or more) of the following statements is correct: The tension force forward on the trailer is not the same magnitude as the tension force backwards on the car. Matt has not considered all the forces acting on the car, such as the friction between the wheels and the ground, in order to calculate the net force on the car. Correct! The net force is the sum of all forces acting on an object so you must include all forces to then apply Fnet = ma. O The net force on the car is always zero and therefore the car cannot accelerate. Since the 2 tension forces act on different objects you can't add them together to get a "net force" on either object.Model Mass Initial Velocity Final Velocity Speed Limit Road Conditions Time of Day Lamborghini Aventador 1,550 kg ?? 14.25 mph (6.64 m/s) Car A 35 mph (15.64 m/s) Icy 3:27 p.m. Based on the evidence, write a scientific explanation that determines whether or not Car A was speeding when it collided with Car B. Subaru Outback 2,100 kg 0 m/s 14.25 mph (6.64 m/s) Car BA 100. N force is applied to a 21.2 kg crate to slide it along a rough horizontal surface. The diagram shows the forces acted on the crate in this situation. What was the magnitude of the normal force acting on the crate? (a) 208 N (b) 258 N (c) 121 N (d) 69.6 N (e) 158 N
- Two forces of F₁ = 7 (i − }) N and F2 (i-ĵ) =154 √2 N act on an object. √2The tension in a string from which a 6.0-kg object is suspended in an elevator is equal to 44 N. What is the acceleration of the elevator? Question 12 options: 14 m/s2 upward 15 m/s2 downward 11 m/s2 downward 2.4 m/s2 downward 12 m/s2 upwardA steel cable lying flat on the floor drags a 20 kg block across a horizontal, frictionless floor. A 110 N force applied to the cable causes the block to reach a speed of 3.9 m/s in a distance of 2.0 m. What is the mass of the cable? Express your answer with the appropriate units. m= Submit μA Value Units ? Units input for part A Previous Answers Request Answer