Question 242: Laws of Motion

Question

A body,  under the action of a force $$\overrightarrow F  = 6\widehat i - 8\widehat j + 10\widehat k,$$ acquires an accelerations of 1 m/s2. The mass of this body must be

Accepted Answer

$$\overrightarrow F  = 6\widehat i - 8\widehat j + 10\widehat k$$
$$\left| {\overrightarrow F } ight| = \sqrt {36 + 64 + 100} $$
$$ = \sqrt {200} N = 10\sqrt 2 N$$
Acceleration, a = 1 m s
Ã¢ÂÂ2
$$ 	herefore $$ $$Mass,\,M = {{10\sqrt 2 } \over 1} = 10\sqrt 2 \,kg$$

Answer

10 kg

Answer

20 kg

Answer

10$$\sqrt 2 $$ kg

Answer

2$$\sqrt {10} $$ kg

Laws of Motion

A body, under the action of a force $\overrightarrow F = 6\widehat i - 8\widehat j + 10\widehat k,$ acquires an accelerations of 1 m/s2. The mass of this body must be

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