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CBSE Class 9 Answered

a bullet of mass 50g is fired using pistol of mass 1.5 kg experience 5m/s recoil speed what is the speed of bullet speed
Asked by deepudeepubs26 | 28 Sep, 2020, 05:55: PM
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m subscript 1 u subscript 1 plus m subscript 2 u subscript 2 equals m subscript 1 v subscript 1 plus m subscript 2 v subscript 2 I n i t t i a l l y space b u l l e t space a n d space g u n space i s space a t space r e s t space h e n c e space t h e space i n i t i a l space m o m e n t u m space o f space t h e space s y s s t e m space i s space z e r o 0 equals 1.5 cross times 5 plus 50 over 1000 V V equals negative 150 m divided by s H e r e space n e g a t i v e space s i g n space s h o w s space t h a t space t h e space b u l l e t space i s space m o v i n g space i n space t h e space o p p o s i t e space d i r e c t i o n space t o space t h a t space o f space t h e space g u n space
Answered by Utkarsh Lokhande | 29 Sep, 2020, 11:03: AM
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CBSE 9 - Science
Delhi and Chicago are almost diametrically opposite on the earth. If someone travels from Chicago to Delhi, What will be the magnitude of his displacement?
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Asked by rr6505607 | 28 Mar, 2024, 09:06: PM
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CBSE 9 - Science
draw a sketch of distance time travel of a moving bus with the help of the following data a option but travels in uniform motion b option it reaches a distance of 20 km in 40 minutes c option it takes 80 minutes to travel a distance of 40 km
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Asked by sindhusindhushree499 | 27 Mar, 2024, 10:53: AM
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CBSE 9 - Science
1)In carrrom, if striker strikes the pile of coins weakly what happens? justify answer. 2)In carrom, what quantities can be increased so the vertical fall will be ensured?
Asked by mailtoparvathyprajith | 11 Feb, 2024, 09:39: PM
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CBSE 9 - Science
A light and heavy object have the same momentum, find out the ratio of their kinetic energies. Which one has larger kinetic energy?
Asked by mailtoparvathyprajith | 31 Jan, 2024, 07:11: PM
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CBSE 9 - Science
A body of mass 25g has a momentum of 0.40 kgm/s. find its kinetic energy
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Asked by sk7752052 | 21 Jan, 2024, 09:05: PM
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CBSE 9 - Science
why is it taken as 35*75/100+37*25/100?
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Asked by forever.neeta | 19 Jan, 2024, 06:59: PM
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CBSE 9 - Science
waht are isobars
Asked by siddharthsingha2009 | 07 Jan, 2024, 05:35: AM
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CBSE 9 - Science
tell this question
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Asked by surajdabas414 | 02 Jan, 2024, 03:06: PM
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CBSE 9 - Science
this question
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Asked by gunjanmeena738 | 31 Dec, 2023, 11:27: AM
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CBSE 9 - Science
what is the retarding force
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Asked by nivasreddyevuri1 | 30 Dec, 2023, 09:01: PM
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