1. A toy rocket rises from the ground with a constant upward acceleration of 5 m/s2 for 6 seconds while the rocket engine is on. The engine then runs out of the fuel. Assume that frictional forces are negligible, so the rocket is in free falI, i.e., the acceleration is 10 m/s2 down. After four more seconds a parachute is released, and the rocket falls to the ground at constant speed. Make a graph of the y-velocity vs. time for the first 20 seconds of the flight toy rocket with +y chosen to be up. Label your vertical axis with units (i.e., "time (sec)") a. and include numbers on axis.

1. A toy rocket rises from the ground with a constant upward acceleration of 5 m/s2 for 6 seconds while the rocket engine is on. The engine then runs out of the fuel. Assume that frictional forces are negligible, so the rocket is in free falI, i.e., the acceleration is 10 m/s2 down. After four more seconds a parachute is released, and the rocket falls to the ground at constant speed. Make a graph of the y-velocity vs. time for the first 20 seconds of the flight toy rocket with +y chosen to be up. Label your vertical axis with units (i.e., "time (sec)") a. and include numbers on axis.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.

Question

A toy rocket rises from the ground
with a constant upward
acceleration of 5 m/s2 for 6
seconds while the rocket engine is
on. The engine then runs out of
the fuel. Assume that frictional
forces are negligible, so the rocket
is in free falI, i.e., the acceleration
is 10 m/s2 down. After four
more seconds a parachute is
released, and the rocket falls to
the ground at constant speed.
1.
vertical velocity of toy rocket
%3D
%3D
Make a graph of the y-velocity
vs. time for the first 20
seconds of the flight toy
а.
rocket with +y chosen to be
up. Label your vertical axis
with units (i.e., "time (sec)")
10
time (sec)
and include numbers on axis.
b. What is the rocket's height when the engine cuts off? Calculate this using the constant
equation for y. Start by writing out the equation symbolically and show the numbers y
your calculation. Label, i.e., "h = " and circle your final answer.
%D
The y displacement, Ay, is also the area "under" the v, vs. t graph. Calculate the
engine turns off using the area "under" the curve and check that it agrees with vou
numbers (with units) that you use. Label and circle your final answer
1

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