A motorboat and its load weigh 980 kg. Assume that the propeller force is constant and equal to 24 kg, and the water resistance is numerically equal to 1.5v kg, where v is the speed at any instant time in m/sec. If the boat starts from rest, determine its speed at the end of 10 seconds. Answer is 2.23 m/s

Q: The 100 kilogram man is walking on the 60 kilogram car at a relative speed of 3 meters / second…

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Q: what is its average speed for the whole trip?

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Q: MN m 0.5 m Each ball has a negligible size and their respective mass are 9-kg and 3-kg. Each ball is…

A: Given: mA=9  kg mB=3  kg r=0.5m M=t2+2 V(t=0s)=9m/s   To find: V(t=6s)

Q: Q24. The buoyancy force on the 580-kg balloon is F = 6 kN, and the air force acting on the balloon…

A: Given data: The buotancy dorce on the 580 kg balloan F=6KNFair=C1.ti-C2.tjC1=24C2=240g=9.81 m/s2…

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A: Given     Mass, m = 4 kg     Force, F = 40 N Find    Acceleration, a

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Q: Q20. The 8-lb block A attains a velocity of 10 ft/s in 2 seconds, starting from rest. Block B has a…

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Q: A 1.28 Mg MINI accelerates at 6 m/s² starting from rest. If the drag resistance on the MINI due to…

A: given Mass of the car is m=1.28 Mg = 1280 kg Acceleration of the car a=6 ms2 Drag force Fd = 10*v N…

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A: Given To Find-Acccleration of bike Just after A

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A: The average speed of the car is 42.3 km/hr or 11.75 m/sec.

Q: Application of de A motorboat and its load weigh 2,450 N. AssumIng that the propeller force is…

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A: Acceleration of the rotating particle is the product of square of angular speed and radius of…

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Q: Top secret crates used for shipping leg warmers are released down an incline at point A with a speed…

A: Given-Information:- Speed, vo = 2 m/sAngle, θ =31oFrictional value, μk = 0.23Rate, 3.4 m/sLength ,…

Q: Q2. A 10 kg pendulum bob traveling along a vertical plane in the position shown. Its speed at A is 5…

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Q: A 150kg block is pulled in the horizontal surface by a force F in a direction 37° above the…

A: Given data: ◆ The mass of the block: m = 150 kg ◆ The angle made by pulling force with horizontal: θ…

Q: The motor M of the hoist operates with an efficiency of ε = 0.7. Determine the power in watt (W)…

A: Solution - Given data-  ε = 0.7                        g = 9.81 m/s2…

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Q: In a rockets test by NASA, a rocket travels upward at 320 m/s, and when it is 70km from the ground…

A: Equations of motion There are three equations of motion.   First equation of motion is, V = u + at…

Q: The sports car has a mass of 23 Mg and accelerates at 6 m/s, starting from rest. If the drag…

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Q: The position of a particle according to the appropriate coordinate set can be vectorially specified…

A: The position vector of a particle is, r=isin2πt-16j1-e-t4+kt24 m The mass of the particle is, m=2 kg…

Q: A 3000 kg van is driving at 20 m/s at t = 6s, when the driver presses the gas pedal. The driving…

A: The mass of the van is m=3000 kg. The velocity is v=20 m/s at t=6 s. The driving force at the wheel…

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Q: The 18-lb link AB is pinned to a moving frame at A and held in a vertical position by means of a…

A: wAB=18 lbg=32.2 ft/s2T=9 lb

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A: There are two types of accelerations that are acting on a circular surface. One type of acceleration…

Q: The odometer of a car reads 2250 km at the start of a trip and 2565 km at the end of the trip. If…

A: Given, Initial reading of the odometer = d1 = 2250 km Final reading of the odometer = d2 = 2565 km…

Q: The position of a particle according to the appropriate coordinate set can be vectorially specified…

A: Given that, Position of particle,r=sin2πt i^-16 1-e-t4 j^+t24 k^ The velocity and acceleration is…

Q: The odometer of a car reads 2020 km at the start of a trip and 2443 km at the end of the trip. If…

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Q: A mass of 50 kg in space is subjected to an external vertical force of 160 N. If the local gravity…

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Q: The motion of a train of mass 340M is opposed by a tractive resistance to motion of 190N/Mg. The…

A: given data; ⇒mass of train (m)=350Mg=350*106kg⇒resisting force or opposing force (F)=190N/Mg⇒total…

Q: M N m 0.5 m Each ball has a negligible size and their respective mass are 3-kg and 8-kg. Each ball…

A: Given: mA = 3 Kg mB =8 Kg r = 0.5 m M=t2+2 V0=10m/s   To find: The velocity of each ball at t= 7s

Q: A rocket travels upward at 75 m/s. When it is 80m from the ground, the engine fails. Determine the…

A: Step 1: Step 2: Step 3: Step 4:

Q: A 5kg block is pushed up along the slope as shown. The coefficient of kinetic friction is uk =0.2.…

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Q: weight concentrated at the end of a cord forms a conical pendulum for which the period is 1.250 sec.…

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Q: Cardo Dalisay is pushing a loaded sled across a level field of ice at the constant speed of 10…

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Q: ight concentrated at the end of a cord forms a conical pendulum for which the period is 1.250 sec.…

A: Given:Time perioid, T=1.250 sinclination from vertical=36o

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Q: thrust can be approximated by the expression T = An aircraft of mass 240,000kg is powered by a jet…

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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.