You've seen a movie at some time when there were skydivers falling through the air, spread out, doing their tricks.  At times there are many falling together.  They look like they're barely moving.  How fast are they actually moving through the air, typically? (your source?)  If they're moving that fast, how can they hook up and touch each other without getting hurt?  Finally someone pulls the cord to open their chute and ...zip! Up they go.  Does a skydiver go up when their chute opens like it looks in the movies?  What's going on?

Q: Two blocks each weighing 25 N are connected to the ends of a light string which is passed over a…

A: Solution: given that m1=m2 = 25 kg

Q: The heaviest watermelon weighed in at 159 kg (350.5 lbs.) and was grown by Chris Kent (USA) of…

A: The mass of the watermelon, m=159 kg The height of the building, h=150 m The acceleration due to…

Q: Our friend Wile E. Coyote (SuperGenius) has developed another secret yet incredibly cunning plan to…

A:

Q: A person weighing 601.3 N stands on spring scales in an elevator that is moving downward with a…

A: Scenario - While going downward in a lift with constant velocity, a person experiences jerk due to…

Q: Your car just ran out of gas and you are stuck in the middle of the road holding up traffic.…

A: According to Newton's third law every action has equal and opposite reaction .It means if we exert…

Q: Group dno bridge. One student, who professes to know what he is talking about (“Of course I'm…

A: A motion of an object or body when given some initial velocity with some angle from horizontal, is…

Q: Spaceship Malfunction. You and your team get a distress call from another ship indicating that there…

A:

Q: How far does the probe travel in total, in m?

A: mass of probe = 33 kg force on probe = 599 N initial velocity u = 0 m/s

Q: A 4.0 kg sphere and 8.0 kg sphere are both dropped from the same height at the same time. If the two…

A: If the objects are under free fall, the only force acting on the object is gravity . Ans also, in…

Q: The small mass m 1.4 kg and big mass M= 9.5 kg are initially at rest with the small mass at the top…

A: From conservation of momentum:

Q: 1. In 1896 in Waco, Texas, William Crush of the "Katy" railroad parked two locomotives at opposite…

A:

Q: Two people are sitting on playground swings. One is pulled back 4 degrees from the vertical and the…

A:

Q: A 12.5 kg object falling towards Earth has a velocity of 2 m/s when it is 100 m above the ground.…

A: Write a given values of this question.

Q: An adventurous archeologist (m = 84.5 kg) tries to cross a river by swinging from a vine. The vine…

A: Given data: Mass (m) = 84.5 kgThe length of the Vine (L)= 10 mThe speed at the bottom swing (V) =…

Q: The 125-lb boy in the figure coasts (without pedaling) his bike off the top of a hill at a speed of…

A:

Q: 4.3. Someone drops a rock from a bridge. ou can neglect air friction as you answer the following:…

A: using,       for t= 0.5 s        for t = 1.0 s         for t = 2.0 s

Q: You are in a completely dark room except for a lamp hanging by a cord from the ceiling. The lamp is…

A:

Q: A 100 kg desk is pushed across a floor at a constant speed of 1m/s. How much the employee do on the…

A: Mass of desk (m) = 100 kg initial constant speed of desk (u) = 1 m/sfinal speed (v) = 4 m/s

Q: A car is traveling along at 20 m/s when it suddenly slams on its brakes. If the mass of the car is…

A: It is given that, u=20 m/sm=1000 kgF=2000 N

Q: A professor swings a rubber stopper in a horizontal circle on the end of a string in front of his…

A: The angular velocity of an object can be obtained by examining the linear velocity of the object and…

Q: the magnitude of the balance force F3 (in N) is: F-6N 140° F2=10N F3

A: Given  F1=6N F2=10N angle between vectors 140

Q: A man is whirling a 0.25 kg ball on a 1.5 m long string at 3 m/s. What is true about the force on…

A: Here the man applies a force that makes the ball rotate in a circle. In this case, they did not ask…

Q: The net force on a 10 kg object is 40 N.  If it is initially moving at 18 m/s, how long will it take…

A:

Q: A porch swing is 4 feet long and supported by chains at either end. The swing weighs 52 pounds. A…

A: We will draw the FBD of the system and then use the moment concept at left and right end of the…

Q: A rock is tied to the end of a string and swung in a vertical circle. The tension in the string when…

A:

Q: A 0.5 meter long string can withstand a maximum tension of 300 N before breaking. What is the…

A:

Q: 2.00m/s on the track. If a student drops a 50g weight on the PASCar and the weight sticks with the…

A:

Q: a). A cannon located 10 m from the ground is used to shoot a metal ball directly upward into the air…

A: a ) Maximum height the ball will travel measured from the ground  Maximum height the ball will…

Q: You cut the tennis ball off of the cord, and you then replace the tennis ball with a 400 gram mass.…

A:

Q: the magnitude of the balance force F3 (in N) is: F=8N F=8N * 95° 35° O 5.70 O 6.64 8.80 10.80

A: Given Data: The magnitude of force F1 is: F1=8 N The magnitude of force F2 is: F2=8 N The angle…

Q: Two skaters, one 3 times the mass of the other, stand 8 m apart holding a taut rope on nearly…

A:

Q: A sedan moves relative to the road at 20mph. A sports car is catching up with it by driving at 50mph…

A: A sedan moves relative to the road = 20mph sports driving relative to the road     =50 mph We have…

Q: Rank the boxes on the basis of the magnitude of the normal force acting on them.

A: The normal force acting on the box is the force that normally acts on the box. Therefore, the…

Q: A boy sitting in a wheelchair throws a stone weighing 500 g at a speed of 5 m/s in the horizontal…

A: Given, Mass of the boy + wheelchair (M) =50 kg Mass of the stone(m) = 500g Initial Stone velocity…

Q: 8 M 2 kg 175 cm 1.2 kg N 90 cm A block M of mass 2 kg lies on a rough horizontal surface. A piece of…

A: Given, M=2kgm=1.2kg

Q: A sedan moves relative to the road at 20mph. A sports car is catching up with it by driving at 50mph…

A: a) In the earth's frame, both the sedan and the sports car are moving forward relative to the…

Q: After making some measurements in lab, you start to daydream about travel to other planets. Your…

A:

Q: A weight hangs on a 1.0 m long rope. How high does it rise if we push it from a resting position at…

A:

Q: An astronaut lands on an unknown planet. Before she can perform any of her other experiments, she…

A: A simple pendulum’s oscillation period (T) is given in terms of its length (l) and the gravitational…

Q: Michael Jordan has a portable basketball hoop in his driveway. He has set the basket at 8 ft (2.4 m)…

A: Write the given values with the suitable variables. h=2.4 mF=600 Nd=1.1 mm=70 kgr=1 m Here, h, F, d,…

Q: A stream (J) of bullets of mass 21 g each has a speed of 501 m/s. They hit and come to rest ()…

A: Given: In this question, the given details are, A stream of bullets of mass 21 g each has a speed of…

Q: 14. Calculate the time it takes for the asteroid and the spaceship to arrive at the same location.…

A:

Q: Kyle, a 95.0 kg football player, leaps straight up into the air (with no horizontal velocity) to…

A: Mass of football player=95kg Mass of ball= 0.43kg Distance from ground =0.386m

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: