The radius of the wheel of a vehicle is 70 cm. The wheel makes 10 revolutions in 5 sec. The speed (in km/hr) of the vehicle is |
|||||||

(a) |
29.46 |
(b) |
31.68 |
(c) |
32.72 |
(d) |
36.25 |

The radius of the wheel of a vehicle is 70 cm. The wheel makes 10 revolutions in 5 sec. The speed (in km/hr) of the vehicle is |
|||||||

(a) |
29.46 |
(b) |
31.68 |
(c) |
32.72 |
(d) |
36.25 |

1 Answer

127 votes

Distance covered in 5 sec = cm = 44 m.

Distance covered in 1 sec = m.

Speed = 8.8 m/s = 31/68 km/hr.

127 votes

127