What is the kinetic energy of a 6 kg bird moving at a speed of 15 m/s?

Q: an object is dropped from a height of 12 m. At what height is its kinetic energy and its potential…

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Q: A woman with a mass of 70 kg climbs a set of stairs that are h = 3 m high. How much gravitational…

A: The  expression for the gravitational potential energy is, Egrav=mgh           (I)…

Q: A force 51 N pushes a crate of mass 5 kg along the floor, where the force of friction opposing the…

A: the acceleration of the motion is  a=Fnetm=F-Ffrictionm=51 N-24 N5 kg=5.4 m/s2

Q: A bicycle and rider going 14 m/s approach a hill. Their total mass is 62 kg. (a) What is their…

A: Given values: speed v = 14 m/s mass m = 62 kg

Q: A 0.140 kg baseball traveling at 30.0 m/s is caught by a catcher and moves her glove back 0.35 m…

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Q: A 5.0 kg mass is falling from a height of 10.0 m with a speed of 2.0 m/a what is it's totally…

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Q: A 1200 kg frictionless roller coaster starts from rest at a height of 16 m.  What is its kinetic…

A: In the presence of conservative forces the sum of potential energy and kinetic energy remains…

Q: The mass of a bald eagle is 6.3 kg. If the eagle is flying at a speed of 33.5 meters/seconds, what…

A: The relation of the kinetic energy is given in terms of mass and velocity Ek=12mv2

Q: What is the kinetic energy of a 45 kg teenager running at a speed of 2.1 m/s? O 21.4 J O 94.5 J O…

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Q: A bodybuilder lifts a 150 kg barbell to a height of 3.0 m.  What is the work done by the bodybuilder…

A: The potential energy is given by  U = m g h  where, m is the mass,  g is the gravity and h is the…

Q: A 5-kilogram object fell free from a height of 3 meters. What is the kinetic energy of the moment it…

A: According to the conservation of mechanical energy, the total change in mechanical energy of an…

Q: A baseball of mass 0.26 kg is thrown at a speed of 41.5 mi/h. What is its kinetic energy?

A: mass of baseball (m) = 0.26 kg speed (v) = 41.5 mihr

Q: The energy required to increase the speed of a certain car from 18 m/s to 23 m/s is 185 kJ. What is…

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Q: How much work is done on a 30.0 kg mass to change its speed from 3.00 m/s to 4.00 m/s over a…

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Q: A baby carriage is sitting at the top of a hill that is 21 meters high. The baby carriage with the…

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Q: A typical baseball has a mass of 0.145 kg. Some pitchers can throw a baseball with a speed of about…

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Q: A runner with a mass of 40 kg increases his speed from rest to 8 m/s.  How much work has she done

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Q: A ball weighing 0.25 kg falls from a height of 3.20 m and bounces to a height of 2.40 m. What is…

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Q: A ball has a mass of 4 kg. Suppose it travels at 14 m/s. Find the kinetic energy possessed by it .

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Q: You decide to lift a 25 kg box to a height of 3 meters.  How much work will you do while moving the…

A: Given:-  The mass of the box is  m = 25  kg  The height h = 3 m  Find:-  How much work will you do…

Q: How much work (in J) is done for an object moving from x=1m to x=5m?

A: As we  know work done(W) is given by the formula - W = Fd,F - Force, d - displacement.We also know…

Q: A 0.45 kg ball is kicked up in the air. It falls back on the ground after attaining a height of 10…

A: Given data The mass of the ball is m=0.45 kg The height attained by the ball is s=10 m The final…