A 42.0-kg parachutist is moving straight downward with a speed of 3.85 m/s. (a) If the parachutist comes to rest with constant acceleration over a distance of 0.750 m, what force does the ground exert on her? (b) If the parachutist comes to rest over a shorter distance, is the force exerted by the ground greater than, less than, or the same as in part (a)? Explain.

Q: In the figure, a crate of mass m = 89 kg is pushed at a constant speed upa frictionless ramp (0 =…

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Q: A box of mass m = 0.5 kg started to slide down from rest at an acceleration of 0.3 m / s ^ 2 on a…

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Q: A student's backpack, full of textbooks, is hung from a spring scale attached to the ceiling of an…

A: We have to find mass of the bag pack. Given that the download acceleration of the bag pack is given…

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Q: Two boxes A and B are at rest on a frictionless surface. MA>MB (M = mass). Two equal forces are…

A: Let the magnitude of the force applied on the boxes is F.The acceleration of box A aA=FmAThe…

Q: mass

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Q: A 50.5-kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic…

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Q: In the figure, blocks A and B have weights of 54 N and 22 N, respectively. (a) Determine the minimum…

A: (given) Weight of block A = 54 N Weight of block B = 22 N (a) N = WA+WCf = μs N T  =μsWA+WC22=0.2354…

Q: small block with mass 0.327 kg is sliding down a frictionless ramp that is inclined at an angle of…

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Q: A book resting on a sheet of ice is given an initial speed vi in the +x-direction. The coefficient…

A: Given quantities: initial velocity = vi  coefficient of kinetic friction = μk acceleration due to…

Q: force F2=15.1N acting at an angle of 0 to the horizontal are applied to a block of mass m=2.6kg. The…

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Q: You apply a constant force F = (–68.0 N)i + (36.0 N) to a 400 kg car as the car travels 55.0 m in a…

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Q: A 61.9-kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic…

A: Given:-  We know that the mass of the crate is m = 61.9 kg  The static coefficient of friction is…

Q: A 4.98-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic…

A: Given : Mass of thr box (m) = 4.98 kg Coefficient of kinetic friction (µk) = 0.393 The equation for…

Q: Determine the magnitude of the force P if the kinetic friction coefficient is 0.2 between the crate…

A: Given,coefficient of kinetic friction,μ=0.2mass, m=50 kgfinal speed, v=10 m/stime, t=10 sto find,…

Q: (a) The normal force acting on an object is always equal to the force of gravity acting on that same…

A: SOLUTION IS GIVEN AS

Q: A cable lowers a 1050 kg elevator so that the elevator's speed increases from zero to 4.0 m/s in a…

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Q: shipping dock. The coefficients of static and kinetic friction are  0.539 and  0.417, respectively.…

A: Mass m = 55.1 kg . The coefficients of static and kinetic friction are 0.539 and 0.417.  Fs is the…

Q: A horizontal force of 12 N pushes a 0.50-kg book against a vertical wall. The book is initially at…

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Q: Suppose you are performing an experiment on a crate of 45-kg tools resting on a horizontal floor.…

A: Using Force balance on the crate placed on horizontal floor: Fx_net = F_app - Ff Given that minimum…

Q: A 2.80-kg block starts from rest at the top of a 30.0° incline and slides a distance of 1.70 m down…

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Q: Consider a 5-kg block accelerating downwards on a frictionless plane inclined at 35 degrees from the…

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Q: A block with a mass of 3.00 kg begins at rest and moves down a lengthy ramp inclined at 22.0 degrees…

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Q: Three forces acting on an object are given by F, = (-1.9î + 7.45j) N, F, = (4.70î - 1.5j) N, and F,…

A: F1→ = -1.9i^ + 7.45j^ F2→ = 4.70i^ - 1.5j^ F3→ = 42i^  acceleration a = 4.00 m /s2  To find =…

Q: A 1370 kg car is skidding to a stop along a horizontal surface. The car decelerates from 25 m/s to a…

A: Initial speed, u = 25 m/s Final speed, v = 0 m/s Time, t = 2 s Mass of the car, M = 1370 kg…

Q: The net force acting on an object is zero. Which one of the following is TRUE? The object can only…

A: Use the Newton's law of motion. According the Newton's first law stated that An object at rest stays…

Q: The inside diameters of the larger portions of the horizontal pipe depicted in the figure below are…

A: Solution:   Given that,   Height of the liquid in the larger pipe (H)=10 cm=0.1 m Height of the…

Q: 3. (a) A 1700 kg car is parked on a road that rises 18° above the horizontal. What are the…

A: I hope this can help you.

Q: a) A bus of mass 760 kg requires 120 m to reach certain velocity value Vf. Ignore friction and drag…

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Q: An object of mass 50kg is pushed in the +x direction with a force of 40N flat along a horizontal…

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Q: Two horizontal forces, P and Q, are acting on a block that is placed on a table. We know that P =…

A: Given: The mass of the object is 5.1 kg. P→=-2.1i^+4.25k^ N The velocity of the object is constant.

Q: A 49.7-kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic…

A: Write the given values with the suitable variables. m=49.7 kgμs=0.511μk=0.359 Here, m, μs, and μk…

Q: A box full of books rests on a wooden floor. The normal force the floor exerts on the box is 317 N.…

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Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: