A figure skater has a mass of 40 kg and her partner's mass is 50 kg. She pushes against the ice with a force of 120 N, causing her and her partner to move forward. Calculate the pair’s acceleration. Assume that all forces opposing the motion, such as friction and air resistance, total 5.0 N.

Q: A 841.2 kg car initially moving at 17.39 m/s starts to slow down and comes to a complete stop in…

A: Just replace the values and its done

Q: Two teams of four members each engage in a tug of war. Each of the first team’s members has an…

A:

Q: A flea jumps by exerting a force of 1.32 x 10 N straight down on the ground. A breeze blowing on the…

A: force exerted by flea = 1.32 x 10-5 N  down wardbut according Newtons third lawforce acting on flea…

Q: A 500-lb object is released from rest 500 ft above the ground and allowed to fall under the…

A:

Q: A hand pushes two blocks across a frictionless pond of ice. Block A has a mass of 1 kg and block B…

A: Force, F = 15 N  mass of A, mA = 1 kg  mass of B, mB = 4 kg

Q: Two people are pushing a truck across a parking lot. The truck has a mass of about 2 × 10 kg. First,…

A:

Q: An elevator cab is pulled upward by a cable. The cab and its single occupant have a combined mass of…

A: Given Combined mass is m=2030  kg The acceleration of coin relative to the cab is aCE=-7.90 m/s2…

Q: A brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a…

A: Free body diagram:

Q: Two blocks are connected by a string passing over a frictionless pulley, as shown in Figure 2. When…

A: Given data as per question mA     = 2.3kg mB     =   3.5kg

Q: As shown in Figure E2.2, three force vectors act on an object. The magnitudes of the forces as shown…

A:

Q: Two forces FA and FB are applied to an object whose mass is 15.5 kg. The larger force is FA . When…

A:

Q: Two forces FA and FB are applied to an object whose mass is 9.15 kg. The larger force is FA. When…

A:

Q: A 863-kg car starts from rest on a horizontal roadway and accelerates eastward for 5.00 s when it…

A: Given:Mass of the car, m= 863 kgInitial velocity, u = 0Final velocity, v = 30 m/sTime taken, t = 5 s

Q: A child’s model boat, when placed in a creek, accelerates from rest at 1.4 m/s2. If the river is…

A:

Q: When a rubber band is stretched to pull on a 1.0 kg block with a constant force, the acceleration of…

A:

Q: An object of mass m has these three forces acting on it . F1, F2, and F3 are shown in the figure.…

A:

Q: Two girls, one of mass 40 kg and the other of mass 60 kg, are standing side by side in the middle of…

A: The mass of girl-1 is given as, m1=40 kg. The mass of girl-2 is given as, m2=60 kg. The force of one…

Q: Two forces FA and FB are applied to an object whose mass is 19.9 kg. The larger force is FA. When…

A:

Q: A child’s model boat, when placed in a creek, accelerates from rest at 1.51 m/s2. If the river is…

A: Initial velocity = 0 msAcceleration (a) = 1.51 ms2Force (F) = 0.79 N

Q: A rocket-sled is shown below. It has 4 rocket engines, each of which generates 1.5 x 103 N of thrust…

A: Given: Thrust force (T) = 1.5 x 103 N            Force of friction (f) = 8.0 x 102 N            Mass…

Q: A person with a black belt in karate has a fist that has a mass of 0.70 kg. Starting from rest, this…

A: Given Data:- Mass of the fist is m=0.70 kg Initial velocity of the fist is vi=0 Velocity of the fist…

Q: he air exerts a forward force of 10 N on the propeller of a 0.40 kg model airplane. If the plane…

A: To determine,the magnitude of the resistive force(FR )exerted by the air on the airplane.given,Force…

Q: A 987.6 kg car initially moving at 10.74 m/s starts to slow down and comes to a complete stop in…

A:

Q: After a day of testing race cars, you decide to take your own 1460.7 kg car onto the test track.…

A:

Q: A boy slides down a hill on a sled (total mass of 31 kg) and coasts onto a flat plain with a speed…

A: Given data The total mass of the boy and sled is m = 31 kg. The speed of the boy and sled is u = 6.5…

Q: Two forces FA and FB are applied to an object whose mass is 9.15 kg. The larger force is FA. When…

A: Given value--- mass = 9.15 kg. a = 0.784 m/s2 (when both forces point due east ). a = 0.420 m/s2…

Q: Tom and Jerry are riding two toy cars connected by a rope. Both are travelling at 16.2 km/h when…

A:

Q: Suppose two children push horizontally, but in exactly opposite directions, on a third child in a…

A: The first child exerts a force of 71 NThe second force is 98 NKinetic friction is 4.5 NMass of the…

Q: exerts a force of 1.18 x 10-6 N on the flea. Find the direction and magnitude (in m/s2) of the…

A:

Q: A net force of 46 N acts on a shopping cart full of groceries producing an acceleration of 4.0 m/s2.…

A:

Q: Suppose two children push horizontally, but in exactly opposite directions, on a third child in a…

A: The expression for the Newton’s second law of motion in horizontal direction is,

Q: A horizontal force of magnitude F = 57.5 N pushes on a block of mass m = 4.7 kg. The block is on a…

A: The given situation can be represented as

Q: A soccer player starts from rest and accelerates forward, reaching a velocity of 9.00 m/s in 3.00 s.…

A: The equation of motion is, v = u + at9m/s =0+a3.0sa=3m/s2

Q: A powerful motorcycle can produce an acceleration of 3.50 m/s while traveling at 90.0 km/h. At that…

A:

Q: Two forces act on a 50 kg object. One force has magnitude of 65 N directed 55° clockwise from the…

A: Given F1 =65 N F2 = 40 N M = 50 kg

Q: A flea jumps by exerting a force of 1.02 x 10 5N straight down on the ground. A breeze blowing on…

A: Data Given , Force straight down on the ground ( F1 ) = 1.02 × 10-5 N Force parallel to the ground (…

Q: Two forces FA and FB are applied to an object whose mass is 6.11 kg. The larger force is FA. When…

A: Given that, mass of object (m) =6.11 kg

Q: A bullet of mass 0.02 kg is fired from a rifle. The bullet takes 0.02s to move through the barrel…

A: Initial velocity of the bullet = 0 ms-1 Final velocity of the bullet = 200 ms-1 Time to travel =…

Q: While standing on a horizontal frictionless surface, two students push against each other. One…

A:

Q: onstant force of friction opposing your push of 75.0 N. As you push the box, it accelerates from…

A: Given: The mass of the object is 50 kg. The friction force is 75 N. The initial velocity of the…

Q: A model rocket is launched up with a thrust of 44.2 N. At one point in its upward flight, the air…

A:

Q: The air exerts a forward force of 10 N on the propeller of a 0.20 kg model airplane. If the plane…

A: Given: Forward Force Ff= 10 N plane acceleration a=2 m/s2 airplane mass m= 0.20 kg

Q: Jane, who has a mass of 81.0 kg, is riding at 15.0 m/s in his new car when she must suddenly slam on…

A: Mass m= 81 kg Initial speed = 15 m/s Final speed = 0 m/s Time = 0.5 s Acceleration = (final speed -…

Q: Two forces act on a 55 kg object. One force has a magnitude 65 N directed 59° clockwise from the…

A:

Q: and (b) the magnitude of FB. i Units 11

A:

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: