题干

如图所示某运动员在进行跳水比赛中以4m/s的初速度竖直向上跳出,先以加速度a1匀减速直线上升,测得0.4s末到达最高点,2s末到达水面,进入水面后以加速度a2匀减速直线下降,2.5s末的速度为v,3s末恰到最低点,取竖直向上的方向为正方向,不计空气阻力,则(   )

A:a1=﹣10m/s2,a2=16m/s2,v=﹣8m/s

B:a1=﹣5m/s2,a2=8m/s2,v=﹣8m/s

C:a1=10m/s2,a2=﹣16m/s2,v=﹣4m/s

D:a1=5m/s2,a2=﹣8m/s2,v=4m/s

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A

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    Welcome to Arundel Castle which is situated in West Sussex, England. The castle has a history of nearly 1,000 years and has welcomed visitors traveling from all over the world. Arundel Castle also plays a starring role in many films.

The Gardens

    The White Garden is planted with soft white iceberg Roses, and Snow White Lilies.

    The Rose Garden is newly planted with lovely old-fashioned English roses that are at their very best in June and July.

    The Organic Kitchen Garden produces a wide range of seasonal fruits and vegetables, pears, cherries and apples.

The Castle Shop

    In the Castle Shop, you will discover a wide and interesting range of gift ideas for everyone. It offers gifts and souvenirs designed to appeal to all tastes and pockets. Foods, china, books, and stationery (文具) are all available. Many are sold in this Castle Shop only.

    At Arundel Castle we pride ourselves on supporting local suppliers and actively encourage environmentally friendly products.

The Arundel Festival

    Saturday l6th to Monday 25th August

    The annual Arundel Festival gets bigger and better every year. It is one of the most amazing, diverse and easily accessible arts festivals in the UK, offering a mix of visual arts, music, theatre and street entertainment.

Parking

    Coaches and mini-buses can drop off at the main Castle entrance in Mill Road and park in the main town car park that is opposite the Castle entrance. Please inform us when making your booking of how many parking permits are required.