Q.14. An object of mass m, = 2 kg moving with an initial speed v = 6 m/s col- lides with a second object of mass m2 = 4 kg moving with an initial speed %3D v2 = 9 m/s as shown in the adjacent figure. The two masses continue their motion %3D as one body with a speed V, that makes an angle 0 with the x-axis. The x-component of the final velocity is V: a. V. = 5.881 m/s b. V. = 6.388 m/s c. V, = 8 m/s %3D 50 40 d. Vf. = 5.512 m/s m v-9 mis

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Chapter1: Units, Trigonometry. And Vectors
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Q.14. An object of mass m, = 2 kg moving with an initial speed v = 6 m/s col-
%3D
lides with a second object of mass m2 = 4 kg moving with an initial speed
v2 = 9 m/s as shown in the adjacent figure. The two masses continue their motion
%3D
as one body with a speed Vr that makes an angle 0 with the x-axis.
The x-component of the final velocity is Vr:
a. Vr. = 5.881 m/s
-6 ms
%3D
b. Vr, = 6.388 m/s
c. V, = 8 m/s
%3D
50°
40
d. Vf.
5.512 m/s
v-9 m/s
Transcribed Image Text:Q.14. An object of mass m, = 2 kg moving with an initial speed v = 6 m/s col- %3D lides with a second object of mass m2 = 4 kg moving with an initial speed v2 = 9 m/s as shown in the adjacent figure. The two masses continue their motion %3D as one body with a speed Vr that makes an angle 0 with the x-axis. The x-component of the final velocity is Vr: a. Vr. = 5.881 m/s -6 ms %3D b. Vr, = 6.388 m/s c. V, = 8 m/s %3D 50° 40 d. Vf. 5.512 m/s v-9 m/s
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