Question
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hysics CHOS HWX PHYS 220.01 Signed in as Ryan Beck He CH05 HW Probl Problem 5.28 s previous | 4 of Problem 5.28 Part A Two carts, of inertias mi and m2, collide head-on on a low-friction track. Before the collision, which is elastic, cart 1 is moving to the right at 12 m/s and cart 2 is at rest. After the collision, cart 1 is moving to the left at 6 m/s If the direction is from left to right, what is the speed of cart 2 after the collision? Express your answer with the appropriate units. u=1 Value Units Submit My Answers Give Up Part B If m2 6 kg, what is the value of mi? Express your answer to two significant digits and include the appropriate units. Value Units m1 My Answers Give Up Submit Con
Explanation / Answer
Here , Let the final velocity of cart 1 is v1
and velocity of cart 2 is v2
A)
v1 = -6 m/s
u1 = 12 m/s
u2 = 0 m/s
Here , Using conservation of momentum ,
12 * m1 = -6m1 * m2*v2
v2 = 18*m1/m2
velocity of v2 is 18*m1/m2
B)
for m2 = 6 Kg
v2 = 18*6/m2
m2 = 108/v2 kg
the mass of m2 is 108/v2 kg