A ball is thrown straight upward with an initial speed of $52\mathrm{.}0$ m$/$s;a$.$ What will be the speed of this ball when it reaches the highest point?b$.$ What will be the speed of this ball just as it returns to the ground? $-52\mathrm{.}0$ m$/$sc$.$ How long will it take for this ball to reach the highest point? $5\mathrm{.}31$sd$.$ How high will the ball be when it reaches the highest point? $138$ me$.$ What will be the speed of this ball after $3\mathrm{.}85$ seconds? $14\mathrm{.}3$ m$/$sf$.$ What will be the average speed of this ball during this same $3\mathrm{.}85$ second period? $33\mathrm{.}1$ m$/$s