The string on a bow can be described as a spring. A particular bow’s string has a spring constant of 110 N/m and is pulled back 0.6 m to launch a 0.02 kg arrow. If the bow has a mass of 1 kg, what will be the speed at which the arrow is launched?

How much kinetic energy does a student of mass 60. kilograms running at 3.0 meters per second possess? A 180 J 270 J 540 J 8100 J

An applied force of 14.4 N acts on a 2.50 kg mass that is initially at rest. Over a distance of 2.35 m, the object changes its kinetic energy by 19.7 J. What amount of work is done by kinetic friction?

An object of mass m= 7.6 kg is free to move on a horizontal surface without any friction. It is initially at rest and starts moving under a net force of F =(3N)î +(4N)ĵ . What is the object's speed in m/s after moving 1 meter?

There is an object with a mass of 2.6 kg that is free to move on a horizontal surface without any presences of friction. Initially, it's at rest and then starts moving under a net force of F =(3N)i^+(4N)j^. What's object's speed in m/s after moving 1 meter?

A model train powered by an electric motor accelerates from rest to 0.720 m/s in 29.0 ms. The total mass of the train is 575 g. What is the average power (in W) delivered to the train by the motor during its acceleration?

OA: 3 m/s B. 4 m/s OC. 5 m/s 60 N 50 kg A 50 kg cart is at rest when a 60 N force is applied, moving the cart 8 m until it hits an uncompressed spring. It then travels for another 2 m under the action of the force. The mass's velocity after moving 10 m is most nearly OD, 6 m/s 10 m 2 m llll k = 100 N/m

A toy rocket with a mass of 321 grams is launched into the air using a spring.  At the apex of the trajectory, the height is 7.5 metres and the velocity is 12.1 m/s.  What is the kinetic energy (in J) of the rocket at this location

A typical human brain has a mass of 1.4 kg, which makes up about 2% of a person's mass. However, the brain requires 20% of the body's power consumption. In essence, the brain requires 10 times as much power as any other organ in the body. The average power output of the human brain is about 2.0 × 10¹ W. Assume that the brain's power output could be converted into mechanical work and calculate how high we could use this power to lift an apple (m = 0.20 kg) in one minute. Number pa Units

A chain is held on a frictionless table with one fourth hanging over the edge.  If the chain has a length of 57 cm and a mass of 0.020 kg, how much work is required to pull the hanging part back onto the table.  Use g = 10 N/kg.