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A: As per the given data, Let the speed of the boat relative to the water (VBW) = + 25 m/s; (Towards…
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A: The expression for the height of the bridge from kinematics equation,
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Q: A penny is thrown into a well that is 14.5 m deep and it takes 0.800 seconds to fall what is the…
A: Given data : Distance traveled by the penny before it reaches the bottom of the well, S = 14.5 m…
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A: Given: Velocity of truck, u→ = 70 -j^ km/hr (taking south as negative y-axis) Velocity of car, v→…
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Q: Gravity____ on other objects to move it closer to the ___ of the object.
A: Newton's law of gravitation is expressed as, F=Gm1m2r2
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Q: A 1400 kilogram car travelling 12 meters per second brakes uniformly to a stop; it takes 6 seconds…
A: Initial velocity=0 Final velocity=12m Time=6sec
Q: You throw a rock off of a cliff in the horizontal direction with a velocity, v. One second later you…
A: It is given that the initial speed of Ist and 2nd rock in vertical direction is zero and in…
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Q: You and some friends decide to take a canoe trip down the Columbia River. The stretch of river you…
A: Ans: 2 hour Solution: first find the distance between the points.
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…
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A: In the absence of air resistance, some gravitational acceleration g will act on both the balls.…
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Q: A ball rolls off a table and falls to the ground below. Its entire flight is captured on a…
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A: Potential energy is defined as the energy possessed by an object by virtue of its position (height…
Q: A ball is dropped from a height of 9 ft. The elasticity of the ball is such that it always bounces…
A: To determine: (a) The total distance of the ball that is travelled at the instant when it hits the…
Q: A plane traveled 900 miles to Athens and back.The trip there was with the wind. It took 9 hours.The…
A: When the plane travels in the direction of wind then the net speed gets added up and when it flows…
Q: An open box car has a mass of 30,000 kg and is moving on a railroad track at 4.00 m/s. 1,000 kg of…
A: Given, Mass of car m1=30,000 kg velocity of car v1=4.00 m/s mass of water m2=1,000 kg
Q: An elevator is moving upward at a constant speed of 4 m/s. A man standing 10 m above the top of the…
A: Constant speed of elevator (v) = 4 ms , upwards height of man above the top of elevator (h) = 10 m…
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A: In the given problem, the type of motion of the football is not shown so consider the ball is moving…
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Q: A girl riding a bicycle along a straight road with a speed of 5 m/s throws a stone of mass 0.5 kg…
A: Speed of bicycle = 5 m/s mass of stone = 0.5 kg speed of stone = 15 m/smass of girl and bicycle = 50…
Q: A ball on a cart is moving at a rate of 2 m/s. The cart suddenly stops and the ball continues to…
A: Solution:
Q: An airplane takes 5 hours to travel a distance of 4800 miles with the wind. The return trip takes…
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Q: A plane needs to reach a velocity of 250 kilometers per hour to take off and leave the runway ,if…
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Q: mass of 10 grams is dropped from a building 100 meters high. After what time will the object hit the…
A: given u = 0 h=100 m
Q: A car travel at 49 km/hr for two hours. It then travels an additional distance of 20 km in 3 hours .…
A: Given : Average speed for two hours 49 km/hr Then it travels an additional distance of 20 km in 3…
Q: A person steps on to a scale in a stationary elevator and notes their weight. The elevator begins to…
A: A person steps on a scale in a stationary elevator. The elevator begins to accelerate downward.
Q: An object is dropped from the height of 50 centimeters. Calculate the time in seconds the object…
A: Given: mass of object (m) = 200g height above the ground (h) = 50cm = 0.5m To find: Time…
Q: a car drove 30 miles. it took the car half an hour to go that distance. what is the car’s speed?
A: Given : Distance travelled by car (d) = 30 miles Time taken (t) = 0.5 h
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Q: A student drops a pebble from the edge of a vertical cliff. The pebble hits the ground 4 s after it…
A: Given data: Initial velocity (Vi) = 0 m/s Time (t) = 4 s Required: Height (h)
Q: A football is thrown forwards out of a car window at a speed of 10 m/s with respect to the car, the…
A: Velocity of football with respect to car = 10m/s Velocity of car with respect to road = 30m/s…
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Q: A cockroach is running across the floor at a velocity of 1.5 cm/s trying to find some Takis (that a…
A: Solution: Given that v = 1.5 cm/s t = 0.5 s
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A: The speed of sound in air medium is, V = 343 m/s We know the speed of…
Q: An object starts falling from rest. It travels 2.78m in 0.75 seconds. What is the final velocity of…
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Q: A girl tosses a ball straight up from the rooftop of a 12-m building. The ball falls past her 0.75 s…
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Q: A 3 kg ball is kicked horizontally off a building at 8 m/s, The building is 20 meters tail,…
A: We have givenMass of ball (m)=3 kgInitial velocity (u)=8 m/s Height of building (H)=20 m
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- Describe the shape of the world line on a space-time diagram of (a) an object that remains at rest at a specific position along the x-axis; (b) an object that moves at constant velocity u in the x-direction; (c) an object that begins at rest and accelerates at a constant rate of in the positive x-direction.John and Anna both travel a distance of 8 kilometeres. a) How long does it take John to cover the distance if he does half the distance at 6.3 kilometers per hour and the other half at 1.2 kilometers per hour? b) What is his average speed for the total distance? c) How long does it take Anna to cover the distance of 8.00 kilometers if she goes 6.3 kilometers per hour for 2/3 of the total time and 1.2 kilometers per hour for 1/3 of the time? d) what is her average speed for the whole trip?A man walks at a speed of 7 m s-1 for 56m and 8m s-1 for next 56m. what is the average speed
- Arthur and Betty start walking toward each other when they are 100 m apart. Arthur has a speed of 3 m/s and Betty has a speed of 2 m/s. Their dog, Spot, starts by Arthur's side at the same time and runs back and forth between them at 5.0 m/s. By the time Arthur and Betty meet, what distance has Spot run? (in meters)A particle's velocity is along the x-axis is described by v(t)=At+Bt^2, where, t is in seconds and v is in meters per second, and A= 0.81m/s^2 and B= -0.64m/s^3 a) What is the displacement in meters between 1 and 3 seconds b)What is the distance traveled in meters between 1 and 3 secondsA car travels 20kph faster than a truck. The car covers 350km in two hours less than the time it takes the truck to travel the same distance. What is the speed of the car? How about the truck?
- A car accelerates uniformly from 10m/s to 20m/s in 5 seconds. a) How far does the car travel in this time? b) After is reaches the speed of 20m/s, how long does it take to stop the cat over a distance of 100m.A rocket is launched from rest and accelerates to a final velocity of 920m/s for 300 seconds. What was its accelerate during this time?The velocity of a car A is to 5î. The velocity of another car B is 22î – 7ĵ. What is the relative velocity of A with respect to B? a) -17î + 7ĵ b) 7î + 17ĵ c) -7î + 17ĵ d) -17î + 7ĵ
- boy sees a deer run directly away from him. The deer is running with a speed of 20 mi/hr. The boy gives chase and runs with a speed of 8 mi/hr. What is the speed of the deer relative to the boy?Arthur and Betty start walking toward each other when they are 100. m apart. Arthur has a speed of 3.0 m/s and Betty has a speed of 2.0 m/s. Their dog, Spot, starts from Arthur's side at the same time and runs back and forth between them. By the time Arthur and Betty meet, what is Spot's displacement?A 1200 kilogram car travelling 20 meters per second brakes uniformly to a stop; it takes 7 seconds to come to a stop after the brakes were first applied. What is the average acceleration (actually deceleration) of the car? Next
