A block of mass 15 kg is sliding along the ice at a constant speed of 4.0 m/s. Just ahead of it is a block of mass 23 kg sliding in the same direction at a constant speed of 3.6 m/s. When the two blocks collide, the 23 kg block travels at a new speed of 5.2 m/s. What is the new speed of the 15 kg block?

Question

09-03-2020
Physics

contestada

A block of mass 15 kg is sliding along the ice at a constant speed of 4.0 m/s. Just ahead of it is a block of mass 23 kg sliding in the same direction at a constant speed of 3.6 m/s. When the two blocks collide, the 23 kg block travels at a new speed of 5.2 m/s. What is the new speed of the 15 kg block?

Respuesta :

Otras preguntas

Which of the following describes the Enlightenment idea of social contract? A.The idea that people consent to government authority and in return the government

Which of the following statements best explains why atoms bond?

Since electrons fill orbitals to produce the lowest energy state, why do you think electrons are unpaired in the free atom and weak-field complexes and are pair

What does the term xenophobic mean

in which area on the map would you have been MOST likely to find sharecropping as the dominant form of agricultural production in the late 1800s?

Water waves are cause by wind which is directly caused by the of the sun

The coinage metals (Group 1B) copper, silver, and gold have specific heats of 0.385, 0.233, and 0.129 J/g-K, respectively. Among this group, the specific heat c

Drawing on her roots in a society that has a strong tradition of storytelling and oral renditions of the past, Indian writer Suniti Namjoshi incorporates many t

Calculate the yield of NH3 in liters at STP, if you react 112 L of N2 with 134.4 L of H2, given the reaction: N2 + 3 H2 --> 2 NH3 How many moles of N2 are

A rectangular community park has an area of 1/10 square mile. One side of the park is 2/5 mile long. The park has four equal-sized sections where different plan

opudodennis opudodennis · Answer 1 · 2020-03-17T11:11:33+01:00

Answer:

1.55 m/s

Explanation:

Following the law of conservation of linear momentum, momentum is conserved hence the sum of initial and final momentum are the same

p=mv where p is momentum, m is the mass of object and v is the velocity of the same object.

[tex]m_1v_1+m_2v_2= m_1V_3+ m_2V_4[/tex] where m and v represent mass and velocity respectively, subscripts 1 and 2 represent initial speed of 15 Kg block and 23 kg block respectively, subscripts 3 and 4 represent final speed of 15 Kg block and 23 kg block respectively.

By substitution

[tex]15*4+(23*3.6)=23*5.2+15V_3\\15V_3=23.2\\V_3=1.546666667\approx 1.55 m/s[/tex]