Weight refers to the force of gravity acting on a mass. We often calculate the weight of an object by multiplying its mass by the local acceleration due to gravity. The value of gravitational acceleration on the surface of Mars is 0.38 times that on Earth. Assume your mass is 81.00 kg. Then your weight on Earth is 793.80 newtons (793.80 N = m × g = 81.00 kg × 9.8 m/s2). What would be your mass on Mars? kg What would be your weight on Mars? N

What is the relationship between the mass of each object and the force of gravity? O Mass of each object is directly proportional to the force of gravity. O Mass of each object is ONLY inversely proportional to the force of gravity. O Mass of each object is inversely proportional to the square of the force of gravity O Mass of each object is proportional to the square of the force of gravity

The sun exerts a gravitational force with magnitude F1 on the Earth. What force would the sun exert on a planet which has three times the Earth's mass and is one fourth as far from the sun as the Earth is? Group of answer choices 3 F1 12 F1 48 F1 16 F1 3 F1 / 16

最 属国国 庫 庫 ! 国 庫 As you will see in a later chapter, forces are vector quantities, and the total force on an object is the vector sum of all forces acting on it. In the figure below, a force F, of magnitude 6.80 units acts on a box at the origin in a direction 6 = 29.0° above the positive x-axis. A second force F, of magnitude 5.00 units acts on the box in the direction of the positive y-axis. Find graphically the magnitude and direction (in degrees counterclockwise from the +x-axis) of the resultant force F, +F 2" 1 magnitude units direction counterclockwise from the +x-axis

You drop an object of mass m from a tall building. Suppose the only forces affecting its motion are gravity, and air resistance proportional to the object's speed with positive constant of proportionality k. Let g denote gravitational acceleration (a positive constant). Express the total force in terms of m, g, and the object's velocity v, where upward displacement is considered positive. F = mg - kv Newton's second law tells us that force is equal to mass x acceleration, F = ma. Relating acceleration to velocity, rewrite the equation for total force above as a first order differential equation for v as a function of t. Denote v' as dv dt v(t) m(- dr) this is not an equation. Solve this differential equation for v(t) with the initial condition v(0) = V0. = mg (1-e ==) m k Find the terminal Terminal velocity = mg k X velocity. X syntax error: X X

A flea jumps by exerting a force of 1.17 x 10-5 N straight down on the ground. A breeze blowing on the flea parallel to the ground exerts a force of 1.12 x 10-6 N on the flea. Find the direction and magnitude (in m/s²) of the acceleration of the flea if its mass is 6.0 × 10-7 kg. (Let us assume that wind points to the right. We will consider this to be the +x direction and vertical to be the +y direction.) magnitude direction m/s² ° (measured clockwise from the vertical)

You are standing on a bathroom scale in an elevator (yes people are staring at you).  You weigh 50 kg but the scale reads in Newtons. Weight (force of Gravity) = Mass x Gravity (10m/s2) As the elevator comes up on the ground floor it decelerates at 2 m/s2 downward.    What is the Gravitational Force?     Since the elevator is decelerating downward does the Normal Force have to be greater than, equal to or less than the Force of Gravity?     Are the forces balanced or unbalanced?     Draw a free body diagram of the forces acting on you.  Be sure to draw the size of your arrows appropriately.     What is the Net Force, using Newton’s 2nd Law, while the elevator is decelerating downward?     What is the Normal Force?     What does the scale read as the elevator is decelerating downward?     What pattern did you notice occurred between all of the different scenarios?

The force on an object moving through a viscous fluid (like honey) is F = -bv, where v is the speed of the object. What are the SI units of b? O kg/s kg/s² kg/m O kg/m² O kg/m · s O none of these

Consider a human who weighs 862 N on Earth. What is the person's mass on Earth? And what is the same person's mass on Mars, where the acceleration due to gravity is 3.7 m/s2?

A 0.8 kg toy car is accelerated from rest by a net force shown in the graph. The approximate speed in m/s of the car when the force removed is F (N) 10.0 5.0 0. 50 75 100 150 х (ст)