Distinguish how vector quantities differ from scalar quantities.
State whether temperature is a vector quantity or a scalar quantity.
State whether acceleration of free fall is a vector quantity or a scalar quantity.
State whether electrical resistance is a vector quantity or a scalar quantity.
A block of wood with weight $25\,\text{N}$ is kept at rest on a slope by a string, as shown in Fig. 1.1. The tension in the string is $T$, and the slope exerts a force $R$ on the block that is normal to the slope. Use either a scale drawing on Fig. 1.1 or calculation to determine the tension $T$ in the string.