Imagine you are at Disneyland on a big roller coaster, sitting with a friend in the front seat of the cart. You ride slowly up to the top of the first hill, then stop momentarily before descending. What force is acting on you? What will happen next to you (and your mass, and the cart’s mass) as a result of this force?
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Imagine you are at Disneyland on a big roller coaster, sitting with a friend in the front seat of the cart. You ride slowly up to the top of the first hill, then stop momentarily before descending. What force is acting on you? What will happen next to you (and your mass, and the cart’s mass) as a result of this force?
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- Imagine a book sitting on a horizontal table. One of the forces acting on a book is a normal force exerted by the table (let's call it action). What force does form the Newton's 3rd law pair (reaction)? Normal force exerted on the Earth by the book. Normal force exerted on the table by the book. Normal force exerted on the table by the Earth. Normal force exerted on the Earth by the table.A(n) 878 kg drag race car accelerates from rest to 102 km/h in 0.962 s. What average force is exerted on the car?Answer in units of N.An astronaut takes a set of scales to do some measurements while travelling. Before leaving earth, the astronaut stands on the scales and they read "75 kg". Determine what the readings would be in the following circumstances. (You will first need to decide what the scales physically relate to). (a) On the moon where gravity is 1.6 m/s² nds o t tant (b) Near the surface of Jupiter where gravity is 26 m/s? the Tian (of mas m basks in the sen on a dop Which ofe The de of the no fore (c) In the spaceship travelling in between planets the ig lore ain .ont fom an action The direction of the o l foree acting on the ands verically upwants 4 The normal frce tg on he wegh
- When venturing forth on Planet X, you throw a 5.60 kg rock upward at 14.2 m/s and find that it returns to the same level 1.67 s later. A) What does the rock weigh on Planet X?A student with a mass of 46 kg stands on a bathroom scale in an elevator. What can you say about the motion of the elevator at the moment that the bathroom scale reads 360 N? Use a force diagram and be as precise as you can when answering (if you can find the exact acceleration, do that).A flea jumps by exerting a force of 1.35 x 10-5 N straight down on the ground. A breeze blowing on the flea parallel to the ground exerts a force of 0.660 x 107 N on the flea. Find the direction and magnitude of the acceleration of the flea its mass is 5.70 x 10 +y-direction is up.) kg. Do not neglect the gravitational force. (Assume that the breeze blows in the +x-direction and that the magnitude direction m/s2 x ° counterclockwise from the +x-axis
- Two people, one of mass 100 kg and the other of mass 50 kg, stand facing each other on an ice-covered (essentially frictionless) pond. If the heavier person pushes on the lighter one with a force F, then A. the force felt by the heavier person is (-1/2)FB. the force felt by the person is -2FC. the magnitude of the acceleration of the lighter person will be half of the magnitude of the acceleration of the heavier personD. the magnitude of the acceleration of the lighter person will be twice the magnitude of the acceleration of the heavier personwww.crackap.com ---------------------Two blocks are positioned on surfaces, each inclined at the same angle of 55.7 degrees with respect to the horizontal. The blocks are connected by a rope which rests on a frictionless pulley at the top of the inclines as shown, so the blocks can slide together. The mass of the black block is 2.73 kg, and this time there is NO friction. What is must be the mass of the white block if both blocks are to slide to the LEFT at an acceleration of 1.5 m/s^2? a. 2.65 kg b. 3.97 kg c. 1.23 kg d. 5.96 kgplease help with question number 64
- -5 A flea jumps by exerting a force of 1.26 x 10" N straight down on the ground. A breeze blowing on the flea parallel to the ground exerts a force of 0.580 × 10–6 N on the flea. Find the direction and magnitude of the acceleration of the flea if its mass is 6.30 x 10¬7 kg. Do not neglect the gravitational force. (Assume that the breeze blows in the +x-direction and that the +y-direction is up.) magnitude m/s2 direction ° counterclockwise from the +x-axisAn adventurous archaeologist crosses between two rock cliffs by slowly going hand over hand along a rope stretched between the cliffs. He stops to rest at the middle of the rope. (Figure 1) The rope will break if the tension in it exceeds 2.50×104 N. Our hero’s mass is 80.0 kg. a)If the angle θ is 13.0 ∘, find the tension in the rope. b)What is the smallest value the angle θθ can have if the rope is not to break?Why is it so much harder to get a heavy table to move than it is to keep it moving? For objects at rest, the normal force is greater. μs < μk μs = μk μs = 0 μs > μk