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: 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…

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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: 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…

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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: 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…

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

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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…

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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.