a police van moving on highway with the speed of 30km/h fire a bullet at the theaf car speeding away in same direction with speed of 120km/h is muzzle speed bullet is 150 ms-1 with what speed bullet hit theaf car
Answers
Answer:
105m/s
Explanation:
Velocity of police v
p
=30km/h=
3
25
m/s
Velocity of thief v
t
=190km/h=
3
160
m/s
Velocity of bullet which police is fire v
b
=150m/s
final velocity of bullet muzzle from gun =v
b
+v
p
=150+
3
25
=
3
475
m/s
Let velocity of thief is Zero and seen with respect to thief. velocity of bullet w.r.t thief
v
b/t
=v
b
−v
t
=
3
475
−
3
160
=
3
315
=105m/s
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Velocity of police vp=30km/h=325m/s
Velocity of police vp=30km/h=325m/sVelocity of thief vt=190km/h=3160m/s
Velocity of police vp=30km/h=325m/sVelocity of thief vt=190km/h=3160m/sVelocity of bullet which police is fire vb=150m/s
Velocity of police vp=30km/h=325m/sVelocity of thief vt=190km/h=3160m/sVelocity of bullet which police is fire vb=150m/sfinal velocity of bullet muzzle from gun =vb+vp=150+325=3475m/s
Velocity of police vp=30km/h=325m/sVelocity of thief vt=190km/h=3160m/sVelocity of bullet which police is fire vb=150m/sfinal velocity of bullet muzzle from gun =vb+vp=150+325=3475m/sLet velocity of thief is Zero and seen with respect to thief. velocity of bullet w.r.t thief
Velocity of police vp=30km/h=325m/sVelocity of thief vt=190km/h=3160m/sVelocity of bullet which police is fire vb=150m/sfinal velocity of bullet muzzle from gun =vb+vp=150+325=3475m/sLet velocity of thief is Zero and seen with respect to thief. velocity of bullet w.r.t thief vb/t=vb−vt=3475−3160=3315=105m/s.
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