A projectile is fired vertically from the earth's surface with an initial speed of 9.33 km/s. Neglecting friction, how far above the earth's surface will it travel?

Find the minimum initial speed of a projectile in order for it to reach a height of 2145 km above the surface of the earth

Problem 5: Consider the vectors, D = (6.00î - 8.00j) m, B = (-8.00î + 3.00j) m, and A = (26.0î + 19.0j) m.

A package of mass 7 kg sits at the equator of an airless asteroid of mass 4.0  1020 kg and radius 5.9  105 m. We want to launch the package in such a way that it will never come back, and when it is very far from the asteroid it will be traveling with speed 188 m/s. We have a large and powerful spring whose stiffness is 2.1  105 N/m. How much must we compress the spring?

At the instant of the figure, a 1.00 kg particle P has a position vector 7 of magnitude 5.40 m and angle 01 = 41.0° and a velocity vector v of magnitude 4.50 m/s and angle 62 = 32.0°. Force F ,of magnitude 6.20 N and angle 03 = 32.0° acts on P. All three vectors lie in the xy plane. About the origin, what are the magnitude of (a) the angular momentum of the particle and (b) the torque acting on the particle? F (a) Number i Units (b) Number i Units

7. An arrow of mass 0.018 kg is shot upward at an angle from the ground, reaching a maximum height of 25 m with a speed of 62 m/s. Neglecting air resistance, with what speed will the arrow hit the ground?

A gun fires a 21-gram bullet on a 1.8 kg wooden block hanging vertically at the end of string (The other end of the string is attached to a ceiling). The bullet embeds in the block, which swings upward a height of H. The speed of the bullet when leaving the gun is 250 m/s. Find H.

A meteoroid of mass = 585 kg has a speed of 83.0 m/s when 700 km above the Earth. It is falling vertically (ignore air resistance) and strikes a bed of sand in which it is brought to rest in 3.51 m. Constants you may find useful: G = 6.67 10-11 N·m2/kg2; MEarth = 5.98 x 1024 kg; REarth = 6.38 x 106 m. Answer with at least 5 decimal places. a. How much work does the sand do to stop the meteoroid? ________ GJ b. What is the average force exerted by the sand on the meteor? ________ GN c. How much thermal energy is produced? ________ GJ

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Q2. Here is a plot of the velocity vs. time for an car. Take a look at the plot and answer each of the following questions: 1. Describe the car's velocity vs. time. For example..."At the beginning of the plot the car was traveling at a velocity of ____ After seconds of constant velocity the car..." 2. What is the initial velocity of the car and how many seconds does the car travel at this velocity? 1. What distance does the car travel while at the initial velocity? 3. What is the final velocity of the car? 4. During what section of the plot (start & stop times) does the car accelerate? 1. How many seconds does the car accelerate? 2. What is the velocity before the acceleration (vi)? 3. What is the velocity after the acceleration (vf)? 4. Calculate the car's average acceleration over this period. 5. During what section of the plot (start & stop times) does the car decelerate? 1. How many seconds does the care decelerate? 2. What is the velocity before the deceleration (vi)? 3. What is…