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What are the magnitudes of

(a) the angular velocity,

(b) the radial acceleration, and

(c) the tangential acceleration of a spaceship taking a circular turn of radius3220kmat a speed of29000kmh?

Short Answer

Expert verified
  1. The magnitude of the angular velocity of the spaceship is,2.5x103rad/s .
  2. The magnitude of the radial acceleration of the spaceship is,20.2ms2
  3. The magnitude of the tangential acceleration of the spaceship is,0ms2

Step by step solution

01

Listing the given quantities

The radius of the circular pathr=3220km=3.220106m

The speed of the spaceshipv=29000kmhr

02

Understanding the kinematic equations

The spaceship is taking a turn along a circular path. So, we need to use the equations that relates the linear variables (v and a) with the corresponding angular variables (and). The two variables are related through the parameter r, the radius of the path.

Formula:

v=r

ar=v2r

at=r

03

Conversion of km/hr to m/s

We convert the speed of the spaceship to the units of m/s

v=29000kmhr=29000kmhr1000m1km1hr3600s=8.05103ms

04

(a) Calculations of angular velocity

The angular velocity and the linear velocity are related as

=vr

Substitute all the value in the above equation.

role="math" localid="1660903601326" =8.05103ms3.22106m=2.510-3rads

The magnitude of the angular velocity of the spaceship is2.510-3rads

05

(b) Calculations of radial acceleration

The radial acceleration is calculated as

ar=v2r

Substitute all the value in the above equation.

role="math" localid="1660903859409" ar=8.05103ms23.22106mar=20.2ms

The magnitude of the radial acceleration of the spaceship is 20.2ms.

06

(c) Calculations of tangential acceleration

The tangential acceleration can be calculated asat=rwhereis the angular acceleration. This is related to the change in the magnitude of the linear velocity v. The given spaceship is taking a turn at constant linear velocity. Hence, the magnitude of the velocity is constant. So, the angular accelerationis zero. Hence, the tangential component of the linear acceleration is also zero.

at=rat=0ms

The magnitude of the tangential acceleration of the spaceship is,0ms .

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