{"id":18,"date":"2014-10-12T08:17:43","date_gmt":"2014-10-12T08:17:43","guid":{"rendered":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysu1hwrk\/?page_id=18"},"modified":"2018-05-17T08:03:58","modified_gmt":"2018-05-17T08:03:58","slug":"dynamics-space-exercise-3","status":"publish","type":"page","link":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysu1hwrk\/dynamics-space-exercise-3\/","title":{"rendered":"Dynamics & Space Exercise 3"},"content":{"rendered":"

1. The graph below shows how the speed of an object varies with time.
\n\"\"<\/a>
\nWhich parts of the graph show:
\n(a) constant speed
\n(b) speeding up
\n(c) slowing down?<\/p>\n

2. At a greyhound racing track, the greyhounds are automatically released when an artificial hare crosses the starting line.<\/p>\n

\"\"<\/a><\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n

The speed-time graph shows the motion of one greyhound and the hare from the time when the hare crosses the starting line\u06d4<\/p>\n

\"\"<\/a><\/p>\n

(a) How long does it take for the greyhound to start moving after the hare crosses the starting line?<\/p>\n

(b) Calculate the acceleration of the greyhound when it starts moving.<\/p>\n

(c) The hare crosses the finishing line 20s after crossing the starting line.<\/p>\n

\n(i) Over what distance is the race run?<\/p>\n

\n(ii) How far behind the hare is the greyhound when the hare finishes the race?<\/p>\n

 <\/p>\n

3. The graph below shows part of the journey of a car as it leaves the traffic lights.
\n\"\"<\/a>
\nUse the graph to:<\/p>\n

(a) Describe the motion of the vehicle during the first 25 seconds of its journey.<\/p>\n

(b) Calculate the acceleration during the first 10 seconds of the journey.<\/p>\n","protected":false},"excerpt":{"rendered":"

1. The graph below shows how the speed of an object varies with time. Which parts of the graph show: (a) constant speed (b) speeding up (c) slowing down? 2. At a greyhound racing track, the greyhounds are automatically released when an artificial hare crosses the starting line.         The speed-time graph … Continue reading Dynamics & Space Exercise 3<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":2454,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-18","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysu1hwrk\/wp-json\/wp\/v2\/pages\/18","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysu1hwrk\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysu1hwrk\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysu1hwrk\/wp-json\/wp\/v2\/users\/2454"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysu1hwrk\/wp-json\/wp\/v2\/comments?post=18"}],"version-history":[{"count":9,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysu1hwrk\/wp-json\/wp\/v2\/pages\/18\/revisions"}],"predecessor-version":[{"id":148,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysu1hwrk\/wp-json\/wp\/v2\/pages\/18\/revisions\/148"}],"wp:attachment":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysu1hwrk\/wp-json\/wp\/v2\/media?parent=18"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}