Question

Notify Me Bookmark

Calculate the minimum possible magnitude u of the muzzle velocity which a projectile must have when fired from point A to reach a target B on the same horizontal plane 7.2 km away. Answer: u = m/s

Calculate the minimum possible magnitude u of the muzzle velocity which a projectile must have when fired from point A to reach a target B on the same horizontal plane 7.2 km away. Answer: u = m/s

Image text
Calculate the minimum possible magnitude u of the muzzle velocity which a projectile must have when fired from point A to reach a target B on the same horizontal plane 7.2 k m away.
Answer: u = ◻ m / s

Detailed Answer

0 0

Please enter your email here. You will get email when this question is answered by our tutor.

Doubtrix Logo

Problem is not yet solved!

Click on Notify me to get email when question is answered.

Join Doubtrix with 7-days free trial

  • Icon Correct & Verified Answers
  • Icon No AI-Generated Answers
  • Icon Video Solution for Difficult Questions
  • Icon Work With Experts to Reach at Correct Answers
Notify me Login Sign Up

Similar/Related Questions

Q1 (Ch7/8) (Solve this with concept of energy and force. ) An object of mass m = 865 g moves on horizontal plane with velocity (v = 12.0 m/s) of the object at point A. Horizontal surface (AB) has μ1 = 0.550 of kinetic friction coefficient and inclined plane (BC) has μ2 = 0.350 of kinetic friction coefficient. Object reaches maximum height of h on inclined plane. At point C object velocity is zero. Inclined angle θ = 32∘. The acceleration due to gravity is g. a) Find an algebraic equation for the work done due to friction from A to B (AB = d = 7.0 m) and then find the numerical value? (2 points) b) Find an algebraic equation for the velocity of the object at point B and then find the numerical value (AB = d = 7.0 m)? ( 4 points) c) Find an algebraic equation for height h when the object reaches point C on inclined plane and then find the numerical value? ( 4 points)
Solution
0 0

(a) Imagine that a space probe could be fired as a projectile from the Earth's surface with an initial speed of 5.28×104 m/s relative to the Sun. What would its speed be when it is very far from the Earth (in m/s )? Ignore atmospheric friction, the effects of other planets, and the rotation of the Earth. (Consider the mass of the Sun in your calculations.) m/s (b) What If? The speed provided in part (a) is very difficult to achieve technologically. Often, Jupiter is used as a "gravitational slingshot" to increase the speed of a probe to the escape speed from the solar system, which is 1.85×104 m/s from a point on Jupiter's orbit around the Sun (if Jupiter is not nearby). If the probe is launched from the Earth's surface at a speed of 4.10×104 m/s relative to the Sun, what is the increase in speed needed from the gravitational slingshot at Jupiter for the space probe to escape the solar system (in m/s )? (Assume that the Earth and the point on Jupiter's orbit lie along the same radial line from the Sun.) m/s

Solution
0 0

A projectile is fired from the edge of a cliff as shown in the figure at an angle of 30∘ above the horizontal. The cliff is 20 m high. The initial velocity is 13.4 m/s. The projectile reaches maximum height at point P and then falls and strikes the ground at point Q. How far from the base of the cliff does the projectile land (in m)? Neglect air resistance and use g = 9.81m s2 as the magnitude of the acceleration due to gravity.
Solution
0 0