Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

ICSE Class 10 Answered

a bullet of mass 10 g travels with speed 500 m/s on striking a wooden target it penetrates 0.5 m inside calculate kinetic energy and resistive force
Asked by Samrat | 28 Jun, 2018, 11:41: AM
answered-by-expert Expert Answer
Kinetic Energy begin mathsize 12px style 1 half m space v squared space equals space 1 half cross times 10 cross times 10 to the power of negative 3 end exponent cross times 500 cross times 500 space equals space 1250 space J end style
Let a be the retardation produced by wooden target and this retardation  is calculated
using the formula "v2 = u2 - 2aS " using final velocity v=0 and initial velocity u = 500 m/s and stopping distance = 0.5 m
 
begin mathsize 12px style a space equals space fraction numerator u squared over denominator 2 s end fraction space equals space fraction numerator 500 cross times 500 over denominator 2 cross times 0.5 end fraction space equals space 250000 space m divided by s squared end style
Resistive force = mass of bullet × retardation begin mathsize 12px style equals space 10 cross times 10 to the power of negative 3 end exponent cross times 25 cross times 10 to the power of 4 space equals space 2500 space N end style
Answered by Thiyagarajan K | 28 Jun, 2018, 02:14: PM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
ICSE 10 - Physics
Name the phenomenon of light responsible for the Tyndall effect. Write an event where this phenomenon can be observed. 
Asked by anubhutiupadhaya | 04 Mar, 2024, 01:04: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Physics
Assertion (A): In real and Ideal conditions, work done by a mass tied at the end of a string, rotating uniformly in a circle, is zero. Reason (R): Work done is never zero in vacuum conditions. (a) Both (A) and (R) are true and (R) is the correct explanation of (A). (b) Both (A) and (R) are true but (R) is not the correct explanation of (A). (c) (A) is true but (R) is false. (d) Both (A) and (R) are false.
Asked by navycuber2738 | 29 Feb, 2024, 02:14: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Physics
What are mechanical waves  
Asked by vijayprabath7 | 28 Jan, 2024, 04:41: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Physics
pls derive mgh in physics
Asked by foodonly742 | 02 Jan, 2024, 11:06: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Physics
Explain Pulley
question image
Asked by krishnathakurt139 | 06 Dec, 2023, 09:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Physics
1000 Newton force is applied for 5 second on a body of mass 10 kg kept at rest.Find the change of momentum and distance travelled by the body during that time.
Asked by ayanpal713143 | 27 Nov, 2023, 09:32: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Physics
what amount of water at 40 degree celsius is to be mixed with 250 grams of ice at 10 - 10 degree Celsius so that equally premium temperature is 25 degree Celsius
Asked by imunilu786 | 29 Oct, 2023, 02:35: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Physics
diff between centrifugal and centripetal forces... thank you
Asked by praggya.srivastava.g1972 | 13 Oct, 2023, 10:51: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Physics
could you please make a sample paper ( with ans) for physics ch light , sound , force , spectrum , machine and
Asked by praggya.srivastava.g1972 | 11 Sep, 2023, 08:48: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Physics
how does a mobile phone's radiations affect a plant ? (if a mobile phone is kept in front of a plant for 24 hrs what will happen)
Asked by praggya.srivastava.g1972 | 10 Sep, 2023, 10:52: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×