Consider a particle of mass 2 kg. In first reference frame, the velocity of the particle is 4î m/s. The second reference frame is moving with velocity 3ĵ m/s. Find the kinetic energy of the particle as seen from second reference frame. (a) 50J (b) 9] (c) 25J (d) 1]

Q: A bullet of mass (20 g) is found to pass two points (30 m) apart in a time interval of (4 sec).…

A: Given Mass of bullet (m)=20 g=0.02 kgDistance between two point (D)=30 mTime taken (t)= 4s

Q: What happens to the kinetic energy if the bullet's mass is quadrupled while its velocity is halved?…

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Q: What velocity (m/s) must a 10.7 kg object be moving in order to possess a kinetic energy of 1.38J?

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A: Rest energy (E) = M0 c2 Where M0 = 12.1 g c = 3 x 108 m/s

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A: The initial kinetic energy of the ball can be determined as, KE1=12mv12                      ......…

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A: The potential energy is maximum at extreme position and zero at the mean position.

Q: When a 60 kg object increases its potential energy by 9000 J, approximately how has its position…

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Q: A constant force acts on a mass of 3kg for 1 minute and gives it a velocity of 2 m s−1 . Find the…

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Q: Does a larger net force always produce a larger change inkinetic energy than a smaller net force?…

A: By work-energy theorem, change in kinetic energy is equal to the work done.

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Q: The power needed to accelerate a projectile from rest to its launch speed v in a time t is 33.0 W.…

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Q: If an object of mass 37 kg has a kinetic energy of 120 j, what is its velocity?

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Q: 2. Ryan having mass 60 kg possesses a kinetic energy of 1.3 kJ. What is his speed?

A: Disclaimer - You have asked multiple questions, so as per our guidelines we will answer the first…

Q: When a body possessed a total KE of 69J, and is moving at a speed of 66m/s, find the weight of the…

A: Kinetic energy is the motion energy, An object that has motion - whether it is perpendicular or…

Q: What is the speed of a 239g baseball whose Kinetic energy is 258 J?

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Q: How much work is required to stop an electron (m = 9.11 × 10¬31 kg) which is moving with a speed of…

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Q: If an object of mass 46 kg has a kinetic energy of 225 j, what is its velocity?

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Q: A spring of force constant 500NM' is compressed such that its length shortens by 5cm. The energy…

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Q: A 2.50 kg mass is drop from rest. If it falls a distance of 25.0 m, what will its change in kinetic…

A: From kinematics equation, the expression for the final velocity in terms of displacement is:

Q: A 2.50 kg mass is dropped from rest. If it falls a distance of 25.o m what will its change in…

A: Given  Mass m = 2.5 kg decrease in elevation of mass h = 25 m change in KE ?

Q: If an object of mass 38 kg has a kinetic energy of 232 j, what is its velocity?

A: Data provided:  Mass (m) = 38 kg Kinetic energy (KE) = 232 J Required: The velocity of the object

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Q: A 5-kg mass falls 100 cm. How much work was done on it by the gravitational force? * O 78 J 71 J 50…

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Q: Find the kinetic energy of a ball Of 140 g mass, moving at a velocity Of 30 cm/s ?

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Q: Is it possible for the kinetic energy of an object to be negative? Isit possible for the…

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Q: What is the Kinetic Energy of the car with a mass of 0.032 kg as it exits the track? KE = 1/2mv

A: Given- Mass of car (m)= 0.032 Kg Let take "v" is velocity of car by which it exits from the track.

Q: Find the kinetic energy of a ball of 350 g mass, moving at a velocity of 45 cm /s.

A: Given data :                        Mass   =   m                     Velocity   =   v         To…

Q: Calculate the valu of the time of flight of K-39 (K39) ion that has a kinetic energy of 12.2 x 10-18…

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A: *We'll answer only the first question since the question to be answered was not specified. Please…

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

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Q: If the speed of a particle is halved, by what factor does its kinetic energy change?

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Q: Show that the gravitational potential energy of an object of mass at height on Earth is given by PEg…

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A: mass(m)=5 kg height above datum(h)=100m g =9.75 m/s2

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