A 180-lb man and a 120-lb woman stand side by side at the same end of a 300-lb boat, ready to dive, each with a 16-ft/s velocity relative to the boat. Determine the velocity of the boat after they have both dived, if (a) the woman dives first, (b) the man dives first.

Q: the normal force between the collar and the rod as the collar passes through B. ength of 5 in. and a…

A:

Q: Two identical cars A and B are at rest on a loading dock with brakes released. Car C, of

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Q: Q3. As shown in the image below, the freight cars A and Bare approaching each other, and they have a…

A:

Q: Two identical 1350-kg automobiles A and B are at rest with their brakes released when B is struck by…

A:

Q: Two swimmers A and B , of weight 190 lb and 125 lb, respectively, are at diagonally opposite corners…

A: Given data: Weight of the swimmer A , WA = 190 lb. Weight of the swimmer B , WB = 125 lb. Weight of…

Q: A toy car is propelled by water that squirts from an internal tank. The weight of the empty car is…

A: Given data

Q: Determine the linear momentum of a person whose mass is 80 kg and who is running at a rate of 3 m/s.…

A: Solution   Linear momantum of  a person       L = mv         = 80 x 3         = 240 kg m /s

Q: A locomotive exerts a constant force 200,000 lbs on a set of series-connected railroad cars weighing…

A: Let us draw the FBD  Acceleration of the train…

Q: A toy rocket of mass 1 kg is placed on a frictionless horizontal surface at rest. Then the rocket…

A: Find the speed of rocket at time 0.5 seconds Mass of rocket = 1 kg

Q: at an amusement park there are 200 kg bumper cars A, B, and C that have riders with masses of 40kg,…

A: Given: The mass of bumper cars, m = 200 kg The weight of the person sitting on car A, mA = 40 kg The…

Q: Q2. As shown in the image below, the freight cars A and B are approaching each other, and they have…

A:

Q: Car B is towing car A at a constant speed of 10 m/s on an uphill grade when the brakes of car A are…

A:

Q: In order to shorten the distance required for landing, a jet airplane is equipped with movable vanes…

A: Given data

Q: cord can handle is 6.75 N. Knowing that at t = 0, r = 0, determine the angle at which the cord…

A: mg is weight force, T is tension force in cord,  is normal force along radial OA direction.

Q: Two swimmers A and B, of weight 190 lb and 125 lb, respectively, are at diagonally opposite corners…

A:

Q: A car of mass 900 kg is initially travelling at 55 km/h. If the speed increases so that its kinetic…

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Q: Neglecting the size of the ball, determine the magnitude vą of the basketball's initial velocity and…

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Q: Two blocks A and b , of mass 4 kg and 5 kg, respectively, are connected by a cord that passes over…

A: Draw the schematic diagram for the above problem statement. At position 1 to position 2,

Q: A stone was dropped freely from a balloon at a height of 190 m. above the ground. The balloon is…

A:

Q: ive to the boat. Determine the speed of the boat after they both dive, if (a) the woman dives first,…

A:

Q: Block A, with a mass of 0.290 kg, is traveling north on a frictionless surface with a speed of 5.00…

A: The speed of B just before the collision is 4.4 m/s towards west.

Q: The nozzle shown discharges water at the rate of 200 gal/min. Knowing that at both B and C the…

A: Given data: Discharge (Q)   = 200 gal/min. Velocity (v)       = 100 ft./s Determine the force-couple…

Q: A cyclist reaches a speed of 9.1 km / h. Determine the kinetic energy produced by his legs (in…

A: Given data: Speed, v= 9.1km/h=9.1×1000/3600 v=2.53m/s Mass, m=82.1 kg

Q: A 35 000-Mg ocean liner has an initial velocity of 4 km/h. Neglecting the frictional resistance of…

A: Given data Mass of the ocean liner, m = 35 000 Mg. The initial velocity of the ocean liner, vo = 4…

Q: A 5-kg collar slides from A to B along a frictionless vertical rod as shown. The spring attached to…

A: The mass of the collar is m=5 kg. The spring constant is k=30 N/m The undeformed length of the…

Q: At an amusement park there are 200-kg bumper cars A, B, and C that have riders with masses of 45 kg,…

A:

Q: es Two blocks A and B, of mass 4 kg and 5 kg, respectively, are connected by a cord which passes…

A:

Q: An airline employee tosses two suitcases with weights of 30 lb and 40 lb, respectively, onto a 50-lb…

A: Given data as per the question weight of baggage carrier =50 lb weight of suitcases =30 lb and 40 lb…

Q: A 32,000-lb airplane lands on an aircraft carrier and is caught by an arresting cable. The cable is…

A: Using the Pythagorean theorem in the triangle is:

Q: Freight car A with a gross weight of 155000 lb is moving along the horizontal track in a switching…

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Q: The valve of a cylinder containing 15 kg of compressed gas is opened and the cylinder empties in…

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Q: The main propulsion system of a space shuttle consists of three identical rocket engines, each of…

A: Given   Flow rate is given bydwdt=750 lb/sv=12000 ft/sThus we have the…

Q: The 8735 kg helicopter is takes off vertically with its rotor exerting a constant upward thrust of…

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Q: A 0.0102-kg bullet is fired straight up at a falling wooden block that has a mass of 3.47 kg. The…

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Q: 3. Neglecting the size of the ball, determine the magnitude of yA of the basketball's initial…

A:

Q: Freight car A with a gross weight of 125000 lb is moving along the horizontal track in a switching…

A: Gross weight of car AVelocity of car ACross weight of car BVelocity of car B

Q: A baseball player catching a ball can soften the impact by pulling his hand back. Assuming that a…

A: Given : The weight of the ball is Wb=5 oz=0.3125 lb.The initial speed of the ball is v=90 mi/h=132…

Q: A steel ball is thrown up with a velocity of 60 m/s from the ground. While coming down, it strikes a…

A: Given, initial velocity, u=60m/s During the rise,…

Q: Ball A is thrown vertically upward from the top of a 45-m-high-building with an initial velocity of…

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Q: A steel ball is thrown up with a velocity of 90 m/s from the ground. While going down, it strikes a…

A: Initial velocity of the steel ball u=90m/s Assuming maximum height achieved by the ball =x m Now the…

Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.