Q:A fires a rocket beside from rest at an angle 30° and accelerates at 30 m/s2 for 3.0 s. The engine shuts off at a height 202.5 m above the ground. a) Calculate the speed of the rocket after 3s. b) At what time after t = 0 will the maximum height be reached? %3D c) What maximum height will the rocket reach

An Alaskan rescue plane drops a package of emergency rations to a stranded party of explorers. If the plane is traveling east at 40 m/s and is 100 meters above the ground:   a.Using the release point as the origin, find the time it takes for the package to reach the ground once released.   b.How far east of the release point does the package strike the ground? Also, What is the speed of the package as it hits the ground?   c.With what angle (below the horizontal) does the pack strike the ground? Please show work for all of the parts.

The highest Platform diving in the Olympic games is at the 10 meter height. a. What is the velocity of a diver entering the water from this platform if he steps off the platform initially? Round to nearest tenth. b. How much time does it take the diver to reach the water from the 10 m platform? Round to nearest tenth

Driving down the road at a speed of 23.9 m/s, you suddenly notice a fallen tree blocking the road a distance of 82.0 m ahead of you. You step on the brake pedal and decelerate at a constant rate. What must the magnitude of your acceleration be so that you will come to a stop 6.6 m in front of the tree?   a. 3.79 m/s^2   b. 3.48 m/s^2   c. 3.22 m/s^2   d. 7.58 m/s^2

A grasshopper can jump for a distance of 1.7 m and the horizontal component of its velocity when it leaves the ground is 3.7 m/s. a.) How long is the grasshopper in the air? b.) How high does it go?

I see that an object has is decelerating, what does this tell me about A? A. Nothing at all, what i see has nothing to do with A B. A is a positive C. A is a negative  D. A could be either, depending on the direction of the velocity Can I do the vertical part of a projectile motion problem separately from the horizontal part? A. Always.  Horizontal motion is completely separate from vertical motion though they share time B. Never.  C. Only under very special circumstances

A small rocket launched straight up. When at a height of 5.0km and velocity of 200.0 m/s, it is releases its booster and enters free fall. Neglecting air friction, 1. what is the velocity of the rocket at a height of 6.0km on its way up? A. 142 m/s B. 200 m/s C. 244 m/s D. 397 m/s 2. What is the maximum height, above the ground, the rocket attains? A. 2020m B. 5000m C. 7040m 3. Calculate the total time of flight between releasing its boosters and falling back and hitting the ground? A. 20.4a B. 40.8s C. 37.9s D. 58.3s

24. A rocket is fired upward on a straight upward trajectory at 90 degrees to the surface perfectly, starting from rest with an acceleration of +29.4 m/s² for the first 4 seconds of travel. After finishing these 4 seconds it runs out of gas but continues its upward movement on its original path for a short time. a. b. What is the maximum height it reaches? If after reaching the maximum height it is allowed to fall in free fall in a perfectly linear path towards the earth, what is its final speed just before hitting the ground? Select one: - b. a. Maximum height = 135.8 meters, final velocity = 940.8 meters/seconds Maximum height = 940.8 centimeters, final velocity = 135.8 centimeters/seconds c. Maximum height = 940.8 centimeters, final velocity = 13.58 meters/seconds d. Maximum height = 940.8 meters, final velocity = 135.8 meters/seconds

2. A jet plane has a takeoff speed of vtakeoff = 73 m/s and can move along the runway at an average acceleration of 2.4 m/s2. The runway is 1.2 km. Write out the 3 Kinetic equations. a. b. Write out the values of initial position, initial velocity, and acceleration. How many seconds will it take for the plane to reach takeoff speed? с. d. How far will the plane have to travel to get to takeoff speed? will the plane be able to get to take off before it gets to the end of the runway? е.

Problem 1 You are standing at the edge of a cliff that is 350 meters above the valley below. You throw a rock horizontally with an initial speed of 15 m/s. Give all answers to 2 significant figures. Use g| = 9.8 m/s?. A. What is the total time (in seconds) that the rock is in the air for? B. What horizontal distance (in meters) in front of the cliff does the rock land? MacBook Air esc 吕0 000 888 DII DD F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 23 2$ & 4. 6. 8. Q E Y F H J K