Question

In: Physics

A projectile is fired from ground level at an angle of 63 degree above the horizontal...

A projectile is fired from ground level at an angle of 63 degree above the horizontal with an initial speed of 30 m/s .

What is the magnitude of its instantaneous velocity the moment before it hits the ground?

Express your answer in meters per second to two significant figures.

Solutions

Expert Solution


Related Solutions

A projectile is fired from the 45 m above the ground (the zero level) with an...
A projectile is fired from the 45 m above the ground (the zero level) with an initial velocity of 285 m/s at an angle of 43.5 degrees above the horizontal; a. How long will this projectile be in the air? b. How high will this projectile be at the highest point of its trajectory? c. What will be the range of this projectile? d. What will be the velocity of this projectile 28.0 seconds after it has been fired? e....
A projectile is fired at an angle of 28 degrees above the horizontal with an initial...
A projectile is fired at an angle of 28 degrees above the horizontal with an initial velocity of 1800 feet per second from an altitude of 1,000 feet above the level ground.   A) Formulate the vector valued function (in simplified form) for the position of the projectile at any time,t. B) When and where (in terms of down range distance) does the projectile strike the ground? Be clear and label your results, including units. C) When does the projectile reach...
A 46.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial...
A 46.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 142 m/s from the top of a cliff 150 m above level ground, where the ground is taken to be y = 0. (a) What is the initial total mechanical energy of the projectile? (Give your answer to at least three significant figures.) J (b) Suppose the projectile is traveling 100.6 m/s at its maximum height of y = 360 m. How...
A 40.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial...
A 40.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 134 m/s from the top of a cliff 132 m above level ground, where the ground is taken to be y = 0. (a) What is the initial total mechanical energy of the projectile? (Give your answer to at least three significant figures.) J (b) Suppose the projectile is traveling 95.0 m/s at its maximum height of y = 319 m. How...
A small projectile of mass m is fired at an angle θ above the horizontal. The...
A small projectile of mass m is fired at an angle θ above the horizontal. The initial speed of the object is v0. Find the angular momentum of the projectile with respect to its initial position when the object is a) at its initial location; b) at the highest point of its trajectory; c) about to strike the ground. d) What is the source of the torque that changes the angular momentum of the object?
A stone is thrown from ground level at an angle of θ above the horizontal such...
A stone is thrown from ground level at an angle of θ above the horizontal such that the ratio of the x-component of its initial velocity to the y-component of its initial velocity is 2. The stone strikes a wall 6 m away and at a height of 2 m above the ground. Calculate the initial speed of the stone
A cannonball at ground level is aimed 30 degrees above the horizontal and is fired with...
A cannonball at ground level is aimed 30 degrees above the horizontal and is fired with an initial speed of 125 m/s. A) how far away from the cannon will the cannonball hit the ground? B) What is the highest point of its trajectory?
Projectile Motion - From Ground - General Launch Angle A rocket is fired at an initial...
Projectile Motion - From Ground - General Launch Angle A rocket is fired at an initial speed v0 = 160.0 m/s from ground level, at an angle θ = 46° above the horizontal. Ignore air resistance. The magnitude of the gravitational acceleration is 9.8 m/s2. Choose the RIGHT as positive x-direction. Choose UPWARD as psotitive y-direction Keep 2 decimal places in all answers A. Find v0x, the x component of the initial velocity (in m/s) B.Find v0y, the y component...
A projectile is launched at 40.0 m/s at an angle 30 degree from ground to ground....
A projectile is launched at 40.0 m/s at an angle 30 degree from ground to ground. o Write a function that will return the time of flight based on V_{0} and theta. o Find N time split (suppose N=20) and put those time in Tf[]. o Calculate the height y of the projectile for those time and put them in Y[]. C++
A ball is thrown at a 60.0° angle above the horizontal across level ground. It is...
A ball is thrown at a 60.0° angle above the horizontal across level ground. It is released from a height of 2.00 m above the ground with a speed of 16.0 m/s. How long does the ball remain in the air before striking the ground? Please explain why variables are positive and negative in relation to direction positive or negative.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT