Math, asked by attitudeboymani765, 11 months ago

a car 'A' of mass 1500 kg,travelling at 25m/s collides with another car 'B' of mass 100 kg travelling at 15m/s in the same direction.after collision,velocity of car 'A'becomes 20 m/s.find velocity of car 'B' after collision

Answers

Answered by DEVILPRIEST1097

m1 = 1500kg

v1 = 25 m/s

m2 = 1000kg

v2 = 40 m/s

v3 = 20 m/s

v4 = ?

m1v1+m2v2 = m1v3+m2v4

(1500×25)+(1000×40) = (1500×20)+ 1000v4

(37500 + 4000) - 30000 = 1000v4

v4 = 11500/1000

v4 = 115/10

v4 = 11.5 m/s

HOPE IT HELPS !!!

PLS MARK IT AS THE BRAINLIEST

attitudeboymani765: See question..dear..

DEVILPRIEST1097: oops

DEVILPRIEST1097: m1= 1500kg
m2=1000kg
u1=25m/s
u2=15m/s
v1=20m/s
v2=?

Formula

m1u1+m2u2= m1v1+m2+v2
1500*25+1000*15= 1500*20+1000*v2
37500+15000=30000+1000v2
52500=30000+1000v2
52500-3000=1000v2
22500=1000v2
22500/1000=v2
v2= 22.5m/s

Thus, velocity of car 'B' after collision is 22.5m/s.

attitudeboymani765: Bhai _m2=100kg..hai

attitudeboymani765: Got the answer=90m/s

Answered by rasmipradeepomsiv

Answer:

are u fool

Step-by-step explanation:

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