A bullet fired at an angle of 30° with the horizontal hits the ground 3 km away. By adjusting its angle of projection can one hope to hit a target 5 km away. Assume the nuzzle speed to be fixed and neglect air resistance.

Asked by Last Modified  

2 Answers

Learn Physics

Follow 2
Answer

Please enter your answer

Rajan Kumar mishra

Teachar

Range, R = 3 kmAngle of projection, θ = 30°Acceleration due to gravity, g = 9.8 m/s2Horizontal range for the projection velocity u0, is given by the relation:R = u02 Sin 2θ / g3 = u02 Sin 600 / gu02 / g = 2√3 …….(i)The maximum range (Rmax) is achieved by the bullet...
read more
Range,R= 3 kmAngle of projection,θ= 30°Acceleration due to gravity, g = 9.8 m/s2Horizontal range for the projection velocityu0, is given by the relation:R = u02Sin 2θ /g3 = u02Sin 600/ gu02/ g = 2√3 …….(i)The maximum range (Rmax) is achieved by the bullet when it is fired at an angle of 45° with the horizontal, that is,Rmax= u02/ g ….(ii) On comparing equations (i) and (ii), we get: Rmax= 3√3= 2 X 1.732 = 3.46 kmHence, the bullet will not hit a target 5 km away. read less
Comments
Dislike Bookmark

Awarded as a Best Physics Teacher from IIT

R=U²sin2@/g U=√(R×g/sin2@) U=√(3000×9.8/sin60°) U=184.25 For maximum range@=45° R (max)=U/g=3464 So it is not possible to reach the bullet on given target
Comments
Dislike Bookmark

Related Questions

What is the unit of coefficient of friction?
The coefficient of friction is dimensionless (means it has no units) since it is a ratio of two similar quantities. Its purely a number
Mallikarjun
0 0
5
Why does a cyclist lean to one side, while going along curve? In what direction does he lean?
centripetal force required to turn in a curve.
Meenakshi
0 0
8
What is the best way to master physics?
The best way to master Physics is firstly to understand concepts at a deeper level. Then find out its applications, especially observing the things related to day to day life. For example, when you place...
Aparna
0 0
5
For physics, is HC Verma good?
Yes
Ravichander
0 0
6
Is it possible, the displacement can be greater than the distance travelled by an object?
No, aa for euclidean space, the displacement is always greater than or equal to the distance travelled as goes by it's definition that it is the shortes way possible to reach from point A to point B. And...
Vidyarajeev
0 0
9

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Water can boil and freeze at the same time
Seriously,It's called the tripple point.The temperature and pressure at which a substance can exist in equilibrium in the liquid, solid, and gaseous states.The triple point of pure water is at 0.01°C...
A

Aniruddha Bhattacharjee

0 0
0
explain e=mc2
explain e=mc2
G

Gyans Classes Saket

0 0
0
Work Kinetic Energy Theorem
Spring Compression and Work KE Theorem

Vishesh N.

0 0
0
Acceleration due to gravity and its variation with altitude, depth and rotation of earth   I. Expression for acceleration due to gravity: Consider earth to be a sphere of radius 'R' and mass 'Me'....
R

Ratan Deshpande

0 0
0
Newton's Laws
Newton's Laws -- 1st Law -- the body is in rest until the experience any type of external force. I.e F = 0. Consider a following. Example. Newton's 2nd law-- when we apply any type of force...

Sachin Kakaso Kumbhar

0 0
0

Recommended Articles

Top Benefits of e-Learning

With the current trend of the world going digital, electronic renaissance is a new movement that is welcomed by the new generation as it helps makes the lives of millions of people easier and convenient. Along with this rapidly changing movement and gaining popularity of Internet, e-Learning is a new tool that emerging...

Read full article >

How To Choose The Right School For Children?

Quality education does not only help children to get a successful career and life, but it also hugely contributes to society. The formal education of every child starts from school. Although there are numerous schools, parents find it challenging to choose the right one that would fit their child. It is difficult for them...

Read full article >

Science, Arts Or Commerce - Which One To Go For?

Once over with the tenth board exams, a heavy percentage of students remain confused between the three academic streams they have to choose from - science, arts or commerce. Some are confident enough to take a call on this much in advance. But there is no worry if as a student you take time to make choice between - science,...

Read full article >

The Trend of E-learning and it’s Benefits

E-learning is not just about delivering lessons online. It has a much broader scope that goes beyond manual paper or PowerPoint Presentations. To understand the reach of E-learning and how the whole process works in developing the Educational system, we will discuss a few points here. Let us find out how this new learning...

Read full article >

Find PUC Tuition near you
PUC Tuition in Delhi
PUC Tuition in Bangalore
PUC Tuition in Hyderabad
PUC Tuition in Kolkata
PUC Tuition in Mumbai
PUC Tuition in Chennai
PUC Tuition in Pune
PUC Tuition in Gurgaon
PUC Tuition in Noida
PUC Tuition in Ghaziabad

Looking for Class 11 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you