Four smooth steel balls of equal mass at rest | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) In a head-on elastic collision between two bodies of equal mass,the velocities of the bodies are interchanged.Let the masses of the four balls be

Vedclass · Accepted Answer

$0.4$

Vedclass · Answer

(A) In a head-on elastic collision between two bodies of equal mass,the velocities of the bodies are interchanged.Let the masses of the four balls be $m_1 = m_2 = m_3 = m_4 = m$.The first ball has an initial velocity $v_1 = 0.4 \, m/s$ and the others are at rest $(v_2 = v_3 = v_4 = 0)$.When the first ball collides with the second,they exchange velocities: the first ball comes to rest,and the second ball moves with $v_2 = 0.4 \, m/s$.When the second ball collides with the third,they exchange velocities: the second ball comes to rest,and the third ball moves with $v_3 = 0.4 \, m/s$.This process continues until the last ball is hit.Therefore,the last ball will move with the velocity of the first ball,which is $0.4 \, m/s$.

Similar Questions

Masses of three wires of copper are in the ratio of $1 : 3 : 5$ and their lengths are in the ratio of $5 : 3 : 1$. The ratio of their electrical resistances is

The packing efficiency of the two-dimensional square unit cell shown below is ........... $\%$

Which of the following is the correct structure of $L$-glucose?

The product of the perpendicular distances from any point on the hyperbola $\frac{x^2}{a^2}-\frac{y^2}{b^2}=1$ to its asymptotes is

$A$ reversible engine converts one-sixth of the heat input into work. When the temperature of the sink is reduced by $62^{\circ} C$,the efficiency of the engine is doubled. The temperatures of the source and sink are

Vedclass Test Series

Exam Paper Generator

Online Exam Module