9 Forces and their effects

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Question 4

A stage-lighting bar is held horizontally and can turn about a pivot at one end. A support exerts an upward force of no more than 160 N, with a perpendicular distance of 0.75 m from the pivot. The bar's own weight produces a clockwise moment of 24 N m. A lamp is fixed to the bar with its weight acting 0.40 m from the pivot. What is the maximum weight of the lamp that can be supported in rotational equilibrium?

[1]

$N96\ \mathrm{N}$

$N53\ \mathrm{N}$

$N128\ \mathrm{N}$

$N240\ \mathrm{N}$

9 Forces and their effects

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Question 4

A stage-lighting bar is held horizontally and can turn about a pivot at one end. A support exerts an upward force of no more than 160 N, with a perpendicular distance of 0.75 m from the pivot. The bar's own weight produces a clockwise moment of 24 N m. A lamp is fixed to the bar with its weight acting 0.40 m from the pivot. What is the maximum weight of the lamp that can be supported in rotational equilibrium?

[1]

$N96\ \mathrm{N}$

$N53\ \mathrm{N}$

$N128\ \mathrm{N}$

$N240\ \mathrm{N}$

9 Forces and their effects

Question 4

Markscheme

9 Forces and their effects

Question 4

Markscheme

9 Forces and their effects

Question 4

9 Forces and their effects Questions

9 Forces and their effects

Question 4

9 Forces and their effects Questions