4.76 A car starts from rest on a curve of radius 120 m and accelerates tangentially at 1.0 m/s2 . Through what angle will the car have traveled when the magnitude of its total acceleration is 2.0 m/s2

The angle is 28.64°

Explanation:

Given:

Radius of curve m

Tangential acceleration

Total acceleration

From equation total acceleration,

Find centripetal acceleration,

From equation of centripetal acceleration,

From the equation of kinematics,

    m

For finding the angle,

     rad

    28.64°

Therefore, the angle is 28.64°