(a)[2]
Calculate the magnitude of the resultant vertical force on the rocket.
(b)[2]
Explain why the top of the rocket is pointed and finished with a smooth surface.
Physics 0625 · IGCSE · Forces
Forces — practice question
Fig. 3.1 presents the vertical forces on a toy rocket as it lifts off from the ground. The diagram gives an upward force of 70 N, the rocket's weight as 15 N, and shows that the rocket has a smooth surface.