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could someone help me with this problem?
A 139 kg tackler moving at 2.53 m/s meets head-on (and tackles) a 87.4 kg halfback moving at 5.14 m/s. What will be their mutual speed immediately after the collision?
Oh right. Here's what I've tried doing but no luck.
m1 = 139kg V1 = 2.53 m/s
m2 = 87.4 kg V2 = 5.14 m/s
m1v1+msv2 = Vf(mi+m2)
Vf = (m1v1+m2v2)/(m1+m2)
A 139 kg tackler moving at 2.53 m/s meets head-on (and tackles) a 87.4 kg halfback moving at 5.14 m/s. What will be their mutual speed immediately after the collision?
Oh right. Here's what I've tried doing but no luck.
m1 = 139kg V1 = 2.53 m/s
m2 = 87.4 kg V2 = 5.14 m/s
m1v1+msv2 = Vf(mi+m2)
Vf = (m1v1+m2v2)/(m1+m2)
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