a boat whose top speed is still water is 12 knots points north and steams at full power. if there is an eastward current of 5 knots, what is the speed of the boat

Q: A pulley is made out of a thread that connects two masses that hang straight down. Determine the…

A:

Q: The force of gravity between two objects is always_ attractive O greater on the more massive object…

A: According to Newton's law of gravitation, every object in the universe attracts the other object…

Q: Two sailors are at the tops of their ships' masts in the open ocean.The mast of ship A is twice as…

A: Since, d=3.855h where, d=distance in kilometres(km). h=height of mast in metres(m).   Hence, d=kh…

Q: Two particles of masses 9kg and 18 kg are placed on a smooth horizontal table. A string, which joins…

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Q: 45) When rolled down a mountain was 1.8 m/s. What was the ar A) 57 ° B)

A: Given Data: The velocity at the time of rolled down is, v=7 m/s The horizontal component of velocity…

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A: In order to understand this, look at the picture.

Q: A canoe is being paddled at 2 knots (nautical miles per hour) on a heading of N10°E. The current is…

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Q: Two blocks are connected by strings and are pulled upward by a second string attached to the upper…

A: There are several systems of upward and downward moving masses. The corresponding velocities and…

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Q: A train begins from rest and accelerates to a maximum speed in 70 seconds. The train travels at 30…

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Q: An object is lowered by a rope at a constant speed in the presence of gravity. The net force on an…

A: Acceleration is the rate of change of velocity. If velocity(or speed) is a constant, acceleration is…

Q: Force being experienced when it is connected to a spring. Spring Force Compressed Stretched Spring…

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Q: a man walking at a steady pace of 0.5 m/s at 10 m away from a 48 m tall building saw a ball drop…

A: Given:initial velocity, u = 0.5 m/sdistance, d=10 mheight, h=48 mSolution:Let the acceleration be…

Q: A truck travelling at 54 km/h is slow down 36 km/h in 10 sec. Find the retardation

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Q: School bus drivers are extra careful when they cross railroad tracks. They stop before they cross…

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Q: The Tension force in a string (you may select more than one answer): May act upon different objects…

A: Tension Force: In physics, the tension force is the force that is caused by the stretching or…

Q: The tension force in a clothesline can be high because: The poles holding the clothes line are…

A: Tension works in inward direction of acting force, and is equal to acting force ie; T = F = ma  Mass…

Q: A weight of 10 N resting on an inclined plane at 30 degree to the horizontal is connected by a…

A: Given Data Weight of the two blocks are W1=10 N and W2=20 N Angle of inclination of the plane is…

Q: You stay in an elevator that moves up with constant velocity. The magnitude of the normal force…

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Q: A small boat coasts at constant speed under a bridge. A heavy sack of sand is dropped from the…

A: Momentum is defined as the mass in motion so the momentum is the product of mass and velocity.

Q: Find the value of distance covered by car in 6 s if car is moving with speed of 25 m/s

A: Given Time t = 6 s Speed v = 25 m/s

Q: Bxpress the units of the required quantity in terms of M-L-T: (a) F = G";G Law of Universal…

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Q: A 10-kg weight is suspended by a rope from a ceiling. If a horizontal force of 5.80 kg is applied to…

A: Suspended weight , W = 10 kg  Horizontal force , F =5.8 kg  To find = angle made with the vertical…

Q: An object is lowered by a rope at a constant speed in the presence of gravity. The net force on an…

A: Given that an object is lowered by a rope at a constant speed in the presence of gravity. To…

Q: A ball rolling along the ground gradually slows down and finally comes to rest is due to ________.…

A: Introduction: When the ball starts rolling then the kinetic energy decreases and finally come to…

Q: You are in an elevator that is going from the 5th floor to the ground floor. As you are arriving at…

A: The elevator is going down from the 5th floor to the ground floor. The force diagram is as shown…

Q: A train started in the morning at Am-start(am), stopped in the morning at Am- stop(am) and travelled…

A: Given:In the morning starting time, tm1 = Am-start amstopped at, tm2 = Am-stop  amvelocity of the…

Q: Compute the force on the body of the insect that must be generated during the downward wing stroke…

A: To determine: The force on the body of the insect.

Q: The current in a river exerts a force of 9.0 N on a balloon floating in the river. A wind exerts a…

A: Consider the free-body diagram of the balloon as follows.

Q: *)A 4 ft long horizontal bar supports a load of 60 lb at one of its ends. The other end is pinned to…

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Q: A 4.0-kg block is moving with a speed of 2.0 m/s in the i direction. Another block that has a mass…

A: The solution is given below

Q: A small airplane has an airspeed (speed with respect to air) of 200 km/h. a) Find the time for the…

A: Given Data:- Airspeed of the airplane is vp=200 km/h Concept:- From the relationship of time, speed…

Q: 2. A0.2 kg point object is attached to 0.6 long string. The other end of the string attached to a…

A: Tension in the strong will be due to 2 forces, weight of the object and the centrifugal force acting…

Q: A man enters an elevator holding two boxes - one on top of the other. The top box has a mass of 6.0…

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Q: A body of mass m is attracted toward a 11.1 kg mass, 31.5 cm away, with a force of magnitude 6.60…

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Q: 4. In a vacuum tube, a feather is seen to fall as fast as a coin. This is because - a) gravity…

A: In a vacuum tube, a feather is seen to fall as fast as a coin. The experiment of feather and coin…

Q: Two masses A and B of 10 kg and 5 kg respectively are connected with a string passing over a…

A:

Q: An airplane is headed east with an airspeed of 240 miles per hour. A north wind is blowing with a…

A: Given, the speed of the airplane which is headed towards the east direction: 240 miles per hour  and…

Q: The same forces act on two objects having the same masses. The more massive object will experience…

A: According to Newton's second law  Net force acting on the object is  F= m* a Where m is mass of…

Q: A black aluminum glider floats on a film of air above a level aluminum air track. Aluminum feels…

A: Given :total mass=240 g or 0.240 kgforce=0.823 NIron and magnet are seperated by 2.50 cm

Q: A fish swims directly east across a river, but it is pulled 672m downstream (south) by a strong 6.00…

A:

Q: A motorboat is driven across a river at 10.0 km/h at a right angle to a current that is flowing at…

A: The river current is flowing at the rate of 3.0 km/h and the motorboat isriding at a right angle to…

Q: A boat is traveling at 7 m/s in a 90° angle to the current which is moving at 1.3 m/s. what is the…

A:

Q: A greater force is required to move an object with a greater mass than one with a smaller mass.…

A: Correct answer is True.   A greater force is required to move object of more mass than less one.

Q: What is the one thing in common between a helmet, a stretchable cord in bungee jumping, bending the…

A: Common thing among : a helmet, a stretchable cord in bungee jumping, bending the knees after landing…

Q: In still water, a boat has a velocity of 72 knots (nautical miles per hour) with a bearing of 054°.…

A: Given: Velocity of boat in still water, vsw= 72 knots makes an angle 54° with north direction in…