Chapter 7 - Circular Motion and Gravitation - Learning Path Questions and Exercises - Exercises - Page 260: 3

a). $15^{\circ}=15^{\circ}\times\frac{pi}{180^{\circ}}=0.26rad$ b). $45^{\circ}=45^{\circ}\times\frac{pi}{180^{\circ}}=0.79rad$ c). $90^{\circ}=90^{\circ}\times\frac{pi}{180^{\circ}}=1.6rad$ d). $120^{\circ}=120^{\circ}\times\frac{pi}{180^{\circ}}=2.1rad$

a). $15^{\circ}=15^{\circ}\times\frac{pi}{180^{\circ}}=0.26rad$ b). $45^{\circ}=45^{\circ}\times\frac{pi}{180^{\circ}}=0.79rad$ c). $90^{\circ}=90^{\circ}\times\frac{pi}{180^{\circ}}=1.6rad$ d). $120^{\circ}=120^{\circ}\times\frac{pi}{180^{\circ}}=2.1rad$