Physics, 31.08.2019 09:20 xaniawashington

A1-kg chunk of putty moving at 1 m/s collides with and sticks to a 5-kg bowling ball initially at rest. the bowling ball and putty then move with a momentum of
a) 0 kg m/s.
b) 1 kg m/s.
c) 2 kg m/s.
d) 5 kg m/s.
e) more than 5 kg m/s.

Answers: 1

Show answers

Answers

Momentum P is conserved because there are no external forces acting on the system.

P before = P after = m₁ v₁ + m₂ v₂

m₁ = 1
m₂ = 5

before:
v₁ = 1
v₂ = 0

Pᵇ = 1·1 + 5 · 0

after:
v₁ = v₂

Pᵃ = Pᵇ

Answer from: maddylaugh

B) 1 kg m/s.

Explanation:

A 1-kg chunk of putty moving at 1 m/s collides with and sticks to a 5-kg bowling ball initially at rest. The bowling ball and putty then move with a momentum of

A) 0 kg m/s.

B) 1 kg m/s.

C) 2 kg m/s.

D) 5 kg m/s.

E) more than 5 kg m/s.

From the principle of momentum which states that, in a system of colliding bodies, the total momentum before collision must be equal to the total momentum after collision.

m1u1+m2u2=(m1+m2)V

since the collision is inelastic

1*1+5*0=momentum after collision

1kgm/s =momentum after the impact

Answer from: Quest

Answer choices? if there is any

Answer from: Quest

m₁v₁ + m₂v₂ = (m₁ + m₂)vmomentum is conserved.the left-hand side of the equation represents the momentum in the system before the collision.the right-hand side represents the momentum in the system after the collisionm₁ and v₁ represents the mass and the velocity of the physics blockm₂ and v₂ represents the mass and velocity of the ball of puttyv represents the final velocity of the combined mass.the question states the two masses stick together. they combined mass has its own velocity with the body mass the sum of the two objects' massestheir combined momentum is (m₁ + m₂)vto find the magitude of (m₁ + m₂)v, we need to add the vectors on the left-hand side of the equation: m₁v₁ + m₂v₂.note the diagram. i have positioned the vectors in accordance with their directions.the magnitude of the resultant can be calculated using the pythagorean theorem since this is a right triangle situation (north and west are perpendicular)|(m₁ + m₂)v| = √[ (m₁v₁)² + (m₂v₂)² ]|(m₁ + m₂)v| = √[ (1.5kg·8.0m/s)² + (0.40kg·20m/s)² ]|(m₁ + m₂)v| = 14.4 kg m/sfor two significant figures (assuming that 20m/s is two), this rounds to 14 kg m/s

Another question on Physics

Physics, 22.06.2019 18:30

Asmall 12.00g plastic ball is suspended by a string in a uniform, horizontal electric field with a magnitude of 10^3 n/c. if the ball is in equilibrium when the string makes a 30 ° angle with the vertical, what is the net charge on the ball?

Answers: 1

Answer

Physics, 22.06.2019 19:50

An air-filled capacitor is formed from two long conducting cylindrical shells that are coaxial and have radii of 26 mm and 103 mm. the electric potential of the inner conductor with respect to the outer conductor is - 700 v (k = 1/4πε 0 = 8.99 × 109 n · m2/c2) the energy stored in a 1.0-m length of this capacitor is closest to

Answers: 1

Answer

Physics, 22.06.2019 23:40

Acorporation gives out its profits as dividends paid to whom?

Answers: 1

Answer

Physics, 23.06.2019 00:40

Researchers conducted an experiment to identify the effects of three different hand sanitizers on the growth of bacteria. the researchers grew one type of bacteria in twenty-four identical covered petri dishes. then, they opened eighteen petri dishes and applied the three hand sanitizers to six petri dishes each. they left the remaining six petri dishes closed as a control group. when the researchers measured the growth of bacteria two days later, the six dishes that had no hand sanitizer showed the least amount of bacterial growth. the researchers concluded that not using any hand sanitizer would lead to the least bacterial growth. which statement best explains why the researchers’ conclusion was not justified? the experiment tested too many variables. the control group was not treated the same as the experimental group. the sample size of twenty-four petri dishes is not large enough. the single type of bacteria is not adequate to make any conclusions.

Answers: 1

Answer

You know the right answer?

A1-kg chunk of putty moving at 1 m/s collides with and sticks to a 5-kg bowling ball initially at re...

Questions