(Questions 1-5 are all based on the following example)

A block of mass m_o is at rest on an inclined plane that makes an angle with the horizontal. The static and kinetic coefficients of friction between the block and the surface of the inclined plane are _s > _k > 0.

If the angle was increased slightly and the block continued to be at rest, the magnitude of the force of friction acting on the block would have ___.

If the angle was increased slightly and the block continued to be at rest, the magnitude of the maximum force of friction available to act on the block that would have to be overcome in order to initiate motion would have

If the angle was increased slightly and the block continued to be at rest, the magnitude of the net, external force acting on the block would have ___.

If somehow the value of _s was increased slightly, the magnitude of the force of friction acting on the block would ___.

If somehow the value of _s was increased slightly, the magnitude of the maximum force of friction available to act on the block that would have to be overcome in order to initiate motion would

(Questions 6-11 are all based on the following example)

A block of mass m_o slides with constant speed down an inclined plane that makes an angle with the horizontal. The static and kinetic coefficients of friction between the block and the surface of the inclined surface are such that _s > _k > 0.

If the angle was increased slightly, the magnitude of the force of friction acting on the block would ___.

If the angle was decreased slightly, the magnitude of the net, external force acting on the block would ___

If somehow _k was decreased slightly, the magnitude of the force of friction acting on the block would

If the mass of the sign was increased slightly, T₂ would ___.

If the cord in which the tension is T₁ was lengthened 10 % and reconnected to the block, T₃ would ___.

If the cord in which the tension is T₁ was lengthened 10 % and reconnected to the block, T₃ would ___.

The following information pertains to questions 12-15.

A Cadillac with mass 3 m_o and a Volkswagen with mass m_o go around the same unbanked circular curve on the freeway. Bumper to bumper they go with the same speed v_o. The centripetal acceleration of the VW is a_o and the centripetal force acting on it is F_o.

The centripetal acceleration of the Cadillac is ___ a_o.

The centripetal force acting on the Cadillac is ___ F_o.

If its speed was increased to 3 v_o, the centripetal acceleration of the VW would be a_o x ___.

If the speed of the cars was 2 v_o, the centripetal force acting on the VW would be F_o x ___.