Question

The initial kinetic energy imparted to a 0.55 kg bullet is 1942 J. The acceleration of...

The initial kinetic energy imparted to a 0.55 kg bullet is 1942 J. The acceleration of gravity is 9.81 m/s2 . Neglecting air resistance, find the range of this projectile when it is fired at an angle such that the range equals the maximum height attained. Answer in units of km.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Projectile in 2D: A ball is thrown with initial speed V , at an angle θ...
Projectile in 2D: A ball is thrown with initial speed V , at an angle θ above the horizontal, over flat ground. Show that the motion is restricted to a single plane. Neglecting air resistance, find (a) the time taken for the ball to reach the ground; (b) the maximum height reached by the ball; (c) the horizontal distance travelled by the ball before hitting the ground (range); (d) the kinetic and potential energies at the position of maximum height...
Note: use principles of physics to solve the problem and then verify your answer using the...
Note: use principles of physics to solve the problem and then verify your answer using the simulation. Assume that the acceleration due to gravity has a magnitude of g = 9.80 m/s2. If the range of the projectile is 4.97 m, the time-of-flight is T = 1.33 s, and air resistance is turned off, determine the following. (a) What is the launch angle of the projectile? (b) What is the initial speed of the projectile? (c) Express the maximum height...
Calculate the change in kinetic energy in J, when the mass is 56 kg, the initial...
Calculate the change in kinetic energy in J, when the mass is 56 kg, the initial velocity is 45 m/s and the final velocity is 90 m/s. Calculate the mass of the vehicle in kg, if the grade resistance is 82 N, the road grade is 1.1. Find the rolling resistance (in N) when: the rolling coef. is 0.014, the effective mass is 81 kg. Find F(aero) (in N) if the total tractive effort is 73 kN, the rolling resistance...
A projectile of mass 2 kg is fired at an angle to the ground such that...
A projectile of mass 2 kg is fired at an angle to the ground such that its flight is parabolic. At a certain point in its flight, its potential energy is 150 J and its kinetic energy is 250 J. What is the speed of the projectile when it hits the ground? You may assume that the potential energy at ground level is zero and there is no air resistance?
An object with a mass of 40.0 kg is fired with an initial speed of 1.28...
An object with a mass of 40.0 kg is fired with an initial speed of 1.28 x 102 m/s at an angle of 30.0° above the horizontal from a 116 m high cliff (take ground level to be y = 0 m). (a) Determine the initial total mechanical energy of the projectile. (b) If when the projectile is at its maximum height of y = 287 m, it is traveling 90.7 m/s, determine the amount of work that has been...
A 19-g bullet is shot vertically into an 2-kg block. The block lifts upward 5.3 mm...
A 19-g bullet is shot vertically into an 2-kg block. The block lifts upward 5.3 mm . The bullet penetrates the block andcomes to rest in it in a time interval of 0.0010 s. Assume the force on the bullet is constant during penetration and that air resistance is negligible. Find the initial kinetic energy of the bullet. Express your answer in J.
A 11-g bullet is shot vertically into an 1.5-kg block. The block lifts upward 4.1 mm...
A 11-g bullet is shot vertically into an 1.5-kg block. The block lifts upward 4.1 mm (see the figure). The bullet penetrates the block and comes to rest in it in atime interval of 0.0010 s. Assume the force on the bullet is constant during penetration and that air resistance is negligible. Find the initial kinetic energy ofthe bullet. Express your answer in J
2. A projectile of mass m = 0.500 kg is launched from the ground with the...
2. A projectile of mass m = 0.500 kg is launched from the ground with the angle Θ = 60 degrees and V0 = 40.0 m/s. Here we ignore air friction. (a) calculate the initial mechanical energy E = KE + PE E= (b) What is the kinetic energy of the projectile when it reaches the maximum height h? Speed at the top: v = KE = (c) What is the potential energy of the projectile when it reaches the...
1/ An object moving at a certain speed has a kinetic energy KE of 90 J....
1/ An object moving at a certain speed has a kinetic energy KE of 90 J. If its speed is made 3 times smaller, what would the decrease in its KE be? 2/ An object of mass 1 kg is pushed up along a 5 m long incline to a vertical height of 1 m. The change in its potential energy is; 3/ A 1-kg object is dropped from a height of 40 m and falls freely to the ground....
A 4.0 kg projectile is launched into the air with an initial velocity of 15 m/s...
A 4.0 kg projectile is launched into the air with an initial velocity of 15 m/s at an angle of 30° above the horizontal. When the projectile reaches its maximum height it explodes, splitting in two parts, one of mass 3.0 kg and one of mass 1.0 kg. Assume the explosion was essentially instantaneous. Determine the maximum height of the projectile using energy. After the explosion, if the 1.0 kg mass is moving at 1/2 the speed it was right...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT