A 50 kg physics student is trapped in the middle of a frozen pond with nothing but their 10 kg physics book. To reach the other side of the pond, the student throws the book horizontally at 5 s. What velocity will this give the trapped student so they can escape?

Q: A small box of mass m, moving at speed v, slides on top of a larger box of mass M which rests on the…

A: Given that: Mass of small box=m Mass of large box=M Initial speed of small box=v Final speed of…

Q: Problem 3: An arrow is accelerated out of a bow. What is the average force exerted on a 0.15 kg…

A:

Q: A bullet is accelerated down the barrel of a gun by hot gases produced in the combustion of…

A: The objective of this question is to find the average force exerted on a bullet to accelerate it to…

Q: A 70.1 kg astronaut is holding a 8.1 kg tool pack while drifting at 10.4 m/s to the right. She…

A: Given data: The mass of astronaut is m=70.1 kg. Mass of tool pack is M=8.1 kg. Velocity of both is…

Q: The driver of a car (1100 kg) traveling at 30 m/s on dry concrete sees a deer in the distance and…

A: The mass of the car m=1100 kg. The velocity of the car v=30 m/s. Standard values: Coefficient of…

Q: A golf ball of mass 0.040 kg is at rest on the tee and has a velocity of 108 m/s immediately after…

A:

Q: You throw a 0.53-kg baseball with a speed of 12 m/s during a time interval of 4.0 ms.  What is the…

A: Given  mass(m) = 0.53kg speed (v) = 12m/s time(t) = 4ms = 4×10-3 sec   (∵1ms = 10-3 sec)

Q: A delivery person carries a stack of three boxes labeled 1, 2, and 3. Box 3 is on the bottom of the…

A: Given:            Mass of the boxes are m1=1.5 kg;  m2=2.5 kg;    m3=8 kg            Acceleration of…

Q: An empty coal car of mass 5000 kg starts from rest under an applied force of magnitude 1000 N. At…

A:

Q: A dog weighing 36 kg, is standing on a flatboat so that he is 23 m from shore. He walks 16 m on the…

A: It is given that,

Q: The figure shows a car and a truck traveling in the same direction. The car, moving faster than the…

A:

Q: After a 90-kg person steps from a boat onto the shore, the boat moves away with a speed of 0.70 m/s…

A: Given data mass of person = 90 kgspeed of boat = 0.70 m/s in respect to shore∴v1 = 0.7 m/sspeed of…

Q: A 50-kg swimmer dives horizontally off a 450-kg raft. If the diver's speed immediately after leaving…

A: Given value--- mass of swimmer = 50 kg. mass of raft = 450 kg. speed of swimmer = 3 m/s. We have…

Q: After a 70 kg person steps from a boat onto the shore, the boat moves away with a speed of 0.7 m/s…

A:

Q: A 51.9-kg skater is standing at rest in front of a wall. By pushing against the wall she propels…

A: The average force exerted on the wall can be given by Favg=mv-ut

Q: You construct two wire-frame cubes, one using copper wire, the other using aluminum wire. At 22 ∘C…

A:

Q: A high-speed photograph of a club hitting a golf ball is shown in the figure below. The club was in…

A: Given data: Time interval (Δt) = 0.0042 s Mass (m) = 55 g = 0.055 kg Initial velocity (v0) = 0 m/s…

Q: What is the ball's kinetic energy at the start of its motion?

A:

Q: As a member of CSU's golf team, Jesse has access to the golf range on University Avenue for practice…

A: We have a golf ball of mass m=0.05 kg which was at rest (initial velocity u=0) is then hit by a club…

Q: Two ice skaters stand together as illustrated in Figure (a) below. They "push off" and travel…

A:

Q: You are standing on a large sheet of frictionless ice and holding a large rock. To get off the ice…

A: Write the given values with the suitable variables. vr=12 m/sθ=35°mp=70 kgmr=15 kg Here, vr, θ, mp,…

Q: A football player hits the 500-g ball that comes towards him at a speed of 25 m/s and sends it back…

A: Given: The mass of the ball is m=500 g=0.5 kg. The initial velocity of the ball is u=25 ms. The…

Q: s about to be sw ne only way was 41.

A:

Q: two cars moving at the same speed have a head on collision. if car A is 1600kg and car B is 800 kg,…

A:

Q: During a collision with a wall, the velocity of a 0.200-kg ball changes from 20.0 m/s toward the…

A:

Q: A 72-kg boy and a 48- kg girl, both wearing ice skates face each other at rest on a skating rink.…

A:

Q: A 10-m-long glider with a mass of 680 kg (including the passengers) is gliding horizontally through…

A: Given,

Q: A tennis ball is flying eastward towards a wall with a speed of 33.7 m/s. After bouncing against the…

A:

Q: A 1000 kg car moving westward with a velocity of 10 m/s collides with a utility pole and is brought…

A:

Q: A 0.25 kg arrow with a velocity of 12 m/s to the east strikes a target and pierces the bull's-eye of…

A: Given Mass of an arrow = 0.25 kg Initial velocity of an arrow = 12 m/s Mass of  target = 6 kg…

Q: A 5.0 kg dog stands on an 18 kg canoe at distance D = 6.1 m from the shore.  The dog walks 2.4 m…

A: mass of dog m=5kg mass of canoe M=18kg D=6.1m if dog walks 2.4m along shore and boat moves x…

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: