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Figure shows a 5.00 kg block being pulle...

Figure shows a 5.00 kg block being pulled along a frictionless floor by a cord that applies a force of constant magnitude 15.0 N but with an angle `theta(t)`that varies with time. When angle `theta=25.0^(@)`, at what rate is the acceleration of the block changing if (a) `theta(t)=(2.00xx10^(-2) deg//s)t` and (b) `theta(t)=-(2.00xx10^(-2) deg//s)t` ?

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(a) `-4.43xx10^(-4)" m"//"s"^(3),` (b) `+4.43xx10^(-4)" m"//"s"^(3)`
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