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nata0808 [166]
3 years ago
12

S=ut+1/2at^2 find s when u=20,t= 15 and a= 2

Mathematics
2 answers:
Andru [333]3 years ago
8 0

Answer:

s = 525

Step-by-step explanation:

Here's the required formula to find the displacement (s).

\longrightarrow{\pmb{\sf{s = ut + \dfrac{1}{2}a{t}^{2}}}}

  • ↝ s = distance
  • ↝ u = initial velocity
  • ↝ a = acceleration
  • ↝ t = time taken

Substituting all the given values in the formula to find the displacement (s).

{\longrightarrow{\sf{s = ut + \dfrac{1}{2}a{t}^{2}}}}

{\longrightarrow{\sf{s = 20 \times 15+ \dfrac{1}{2} \times 2{(15)}^{2}}}}

{\longrightarrow{\sf{s = 300+ \dfrac{1}{2} \times 2{(15 \times 15)}}}}

{\longrightarrow{\sf{s = 300+ \dfrac{1}{2} \times 2{(225)}}}}

{\longrightarrow{\sf{s = 300+ \dfrac{1}{2} \times 2 \times 225}}}

{\longrightarrow{\sf{s = 300+ \dfrac{1}{2} \times 450}}}

{\longrightarrow{\sf{s = 300+ \dfrac{1}{\cancel{2}} \times \cancel{450}}}}

{\longrightarrow{\sf{s = 300 + 225}}}

{\longrightarrow{\sf{s = 525}}}

{\longrightarrow{\underline{\boxed{\pmb{\sf{s = 525}}}}}}

Hence, the displacement (s) is 525.

\rule{300}{2.5}

maks197457 [2]3 years ago
6 0

Answer:

s=525

Step-by-step explanation:

s=ut+\frac{1}{2} at^2

s=20*15+\frac{1}{2} *2*15^{2}

s=300+ 225

s=525

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