(1) A moving object has a kinetic energy of 119 J and a momentum with magnitude of 28.0 kg·m/s.
(a) Determine the mass of the object.
______ kg
(b) Determine the speed of the object.
______m/s
(2) A 5.1 g dart is fired into a block of wood with a mass of
24.2 g. The wood block is initially at rest on a 1.6 m tall post.
After the collision, the wood block and dart land 3.4 m from the
base of the post. Find the initial speed of the dart.
______ m/s


(1) A moving object has a kinetic energy of 119 J and a momentum with magnitude...
An object has a kinetic energy of 254 J and a momentum of magnitude 23.7 kg·m/s. Find the speed and the mass of the object. speed m/s mass kg
A 5.5 g dart is Fired into a block of wood with a mass of 22.6g. The wood block is initially at rest on a 1.5m tall post. After the collision, the wood block and dartland 2.5 m from the base of the post. What is the initial speed of the dart?
A 5.5 g dart is fired into a block of wood with a mass of 22.6 g. The wood block is initially at rest on a 1.5 m tall post. After the collision, the wood block and dark land 2.5 m away from the base of the post. Find the initial speed of the dart.
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