Physics Physics Practice Problems Solutions Library

Push-Away Problems Solutions Library

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13 solutions

Push-Away Problems

Q. A bullet fired from a rifle begins to fall(a) as soon as it leaves the barrel(b) after air friction reduces its speed(c) not at all if air resistan...

Solved • Jun 2, 2020

Push-Away Problems

Q. A rifle recoils while firing a bullet. The speed of the rifle's recoil is small because the A) force against the rifle is smaller than against the ...

Solved • Jun 2, 2020

Push-Away Problems

Q. Chuck and Jackie stand on separate carts, both of which can slide without friction. The combined mass of Chuck and his cart,mcart, is identical to ...

Solved • May 31, 2020

Push-Away Problems

Q. A child in a boat throws a 5.05-kg package out horizontally with a speed of 10.0 m/s. Calculate the velocity of the boat immediately after, assumin...

Solved • Nov 12, 2018

Push-Away Problems

Q. Squids and octopuses propel themselves by expelling water. They do this by keeping water in a cavity and then suddenly contracting the cavity to fo...

Solved • Nov 12, 2018

Push-Away Problems

Q. A 66.5 kg astronaut is doing a repair in space on the orbiting space station. She throws a 2.40 kg tool away from her at 3.40 m/s relative to the s...

Solved • Nov 12, 2018

Push-Away Problems

Q. A 800 kg cart is rolling to the right at 3.30 m/s. A 80.0 kg man is standing on the right end of the cart. What is the speed of the cart if the man...

Solved • Nov 12, 2018

Push-Away Problems

Q. A firecracker in a coconut blows the coconut into three pieces. Two pieces of equal mass fly off south and west, perpendicular to each other, at 20...

Solved • Nov 12, 2018

Push-Away Problems

Q. A(n) 56.8 kg astronaut becomes separated from the shuttle, while on a space walk. She finds herself 54.2 m away from the shuttle and moving with ze...

Solved • Oct 5, 2017

Push-Away Problems

Q. A(n) 17 kg object, initially at rest in free space, “explodes” into three segments. The masses of two of these segments are both 6 kg and their vel...

Solved • Jun 5, 2017

Push-Away Problems

Q. Adam ( mA = 80 Kg) and Barbara (mB = 60 Kg) are initially together at rest on an ice rink. When they push each other part, Adam moves with velocity...

Solved • Jun 1, 2017

Push-Away Problems

Q. Margie (of mass 41 kg) and Bill (of mass 65 kg), both with brand new roller blades, are at rest facing each other in the parking lot. They push off...

Solved • May 23, 2017

Push-Away Problems

Q. A man whose mass is 85 kg and a woman whose mass is 50 kg sit at opposite ends of a canoe 5 m long, whose mass is 45 kg. Assume the man is seated a...

Solved • May 16, 2017