8 Energy – forces doing work

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Question 93

H

A box is moved to the same shelf by two routes at constant speed. A direct vertical lift requires a force of 180 N through 1.2 m. A ramp requires a force of 75 N through 3.6 m. The extra work on the ramp is transferred to thermal stores. How much extra energy is transferred?

[1]

$J270\ \mathrm{J}$

$J105\ \mathrm{J}$

$J216\ \mathrm{J}$

$J54\ \mathrm{J}$

8 Energy – forces doing work

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Question 93

H

A box is moved to the same shelf by two routes at constant speed. A direct vertical lift requires a force of 180 N through 1.2 m. A ramp requires a force of 75 N through 3.6 m. The extra work on the ramp is transferred to thermal stores. How much extra energy is transferred?

[1]

$J270\ \mathrm{J}$

$J105\ \mathrm{J}$

$J216\ \mathrm{J}$

$J54\ \mathrm{J}$

8 Energy – forces doing work

Question 93

Markscheme

8 Energy – forces doing work

Question 93

Markscheme

8 Energy – forces doing work

Question 93

8 Energy – forces doing work Questions

8 Energy – forces doing work

Question 93

8 Energy – forces doing work Questions