Question

The speed of a car reduces from 15m/s to
5 m/s over a displacement of 10m. The
uniform acceleration of the car is :
(a )10m/s^2 (b) + 10 m/s² (c) 2 m/s² (d) 0.5 m/s²​

Answer 1

Given:

• v = 5 m/s
• u = 15 m/s
• s = 10 m

Using the formula

$</p><p></p><p>\rightarrow \quad \boxed{ 2as = v^{2} - u^{2} } \\</p><p></p><p>\\</p><p></p><p>\rightarrow \quad 2 \times a \times 10 = (5)^{2} - (15)^{2} \\ \\</p><p></p><p>\rightarrow \quad 20a = 25 - 225</p><p>\\ \\</p><p>\rightarrow \quad a = - \frac{20\cancel{0}}{2\cancel{0}} \\</p><p></p><p>\\</p><p></p><p>\rightarrow \quad a = - \frac{\cancel{20}}{\cancel{2}} \\ \\</p><p></p><p>\rightarrow \quad a = - 10 </p><p></p><p>$

=> -10 m/s²

Answer 2

Answer:

Mark as brainlist.............