An object accelerates from rest to a velocity of 22 m/s over 35 m. What was its acceleration? Ans: 6.91 m/s An object is dropped from a height of 100 m, how long is it in the air? Ans: 4.52 s 10. An object is moving with an initial velocity of 5.5 m/s. It is then subject to a constant acceleration of 2.5 m/s for 11 s. How far will it have traveled during the time of its acceleration? Ans: 211.75 m 8. 9.

Q: Using two ropes, Marian and Michael pull owen in a sleigh.They act at 30° to each other. Marion…

A: Marian pull by force F1=200 NMichael pull by force =F2θ=30°Resultant force R=420 N

Q: I don’t understand p 4.12.

A: Given,

Q: How are vector quantities equal? With the identification of your answer with physical nomenclature?

A: When both magnitude and direction of two vectors are equal and units are also same then both vectors…

Q: From μ=0.20 30° m= a= Ftrict= Fra=420 N kg m/s/s N ΣF= Fnorm (normal force) = Ffrict (force of…

A:

Q: The normal force measured by a scale is the mass of a person the magnitude of a person's true weight…

A: According to question we need to choose correct option.

Q: Which of the following is an appropriate unit for force? Note: there may be more than one correct…

A: We know that force can be written as  Force= Mass×acceleration We know unit of mass is Kg and that…

Q: Six vectors are shown below. ン Select all vectors which have the same magnitude.

A: The quantities which has both magnitude and direction are called vectors. A vector has a head and a…

Q: The magnitude of the resultant of the vectors shown in figure is 5 N 7N

A:

Q: Two forces of 70 N act on an object. The forces form an angle of 57o between them. Calculates the…

A: The magnitude of each of the two same forces, F=70 N The angle between the forces, θ=57°

Q: Four people are playing tug-of-war.  The two people pulling left produce 110N together, while the…

A:

Q: What are two examples of a mechanical vector?

A:

Q: What is a Vector quantity that describes the rate of motion and its direction

A: Given:- Vector quantity that describes the rate of motion and its direction

Q: A pulley is used to: change the direction of the tension force reduce the tension force change the…

A:

Q: 21. An ideal spring with k = 6 N/m is initially compressed 0.40 m. One end is attached to a wall and…

A:

Q: 3. Refer back to Figure 8.1. For which types of electromagnetic radiation is the atmosphere of the…

A: Required : For which type of electromagnetic radiation, is the atmosphere of the Earth completely…

Q: Suppose the glider and the hanger had equal masses MG = mh . In this situation, do you expect the…

A: Given: mG=mh Concept Used: The given situation represents horizontal pulley and both the surface and…

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!