{"id":8123,"date":"2023-04-30T11:50:43","date_gmt":"2023-04-30T11:50:43","guid":{"rendered":"https:\/\/gurumuda.net\/physics\/?p=8123"},"modified":"2024-05-25T06:53:02","modified_gmt":"2024-05-25T06:53:02","slug":"momentum-equation","status":"publish","type":"post","link":"https:\/\/gurumuda.net\/physics\/momentum-equation.htm","title":{"rendered":"Momentum equation","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

3 problems and solutions about Momentum equation<\/span><\/p>\n

1. If the object’s speed becomes 5 times its original speed, then the object’s momentum becomes \u2026.. its original momentum.<\/span><\/p>\n

Known:<\/u><\/span><\/p>\n

Initial speed = v<\/span><\/p>\n

Final speed = 5v<\/span><\/p>\n

Mass = 1<\/span><\/p>\n

Wanted:<\/u> Momentum<\/span><\/p>\n

Solution:<\/u><\/span><\/p>\n

Momentum formula<\/span><\/p>\n

p = m v = 1 (5) = 5<\/span><\/p>\n

If the speed is 5 times the original and the mass is constant then the momentum is 5 times the original.<\/span><\/p>\n

2. An object is thrown upwards on a smooth inclined plane with an initial speed of 10 m\/s. The angle of inclination of the plane to the horizontal is 30o<\/sup>. If g = 10 m\/s2<\/sup>, then if the mass of the object is 2 kg, the momentum of the object after 1 second is…<\/span><\/p>\n

Known:<\/u><\/span><\/p>\n

Initial velocity (vo<\/sub>) = 10 m\/s<\/span><\/p>\n

Angle = 30o<\/sup><\/span><\/p>\n

Acceleration due to gravity (g) = 10 m\/s2<\/sup><\/span><\/p>\n

Mass (m) = 2 kg<\/span><\/p>\n

Wanted:<\/u> Momentum (p)<\/span><\/p>\n

Solution:<\/u><\/span><\/p>\n

Momentum Formula<\/span><\/p>\n

P = m v = (2 kg)(10 m\/s) = 20 kg m\/s<\/span><\/p>\n

Momentum is not depend on weight (w = mg).<\/span><\/p>\n

3. A bullet is fired with a speed of 10 m\/s. If the mass of the bullet is 20 grams, calculate the momentum of the bullet.<\/span><\/p>\n

Known:<\/u><\/span><\/p>\n

Bullet mass (m) = 20 grams = 20\/1000 kg = 0.02 kg<\/span><\/p>\n

Speed (v) = 10 m\/s<\/span><\/p>\n

Wanted:<\/u> Momentum (p)<\/span><\/p>\n

Solution:<\/u><\/span><\/p>\n

Momentum formula<\/span><\/p>\n

p = m v = (0,02 kg)(10 m\/s) = 0,2 kg m\/s<\/span><\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

3 problems and solutions about Momentum equation 1. If the object’s speed becomes 5 times its original speed, then the object’s momentum becomes \u2026.. its original momentum. Known: Initial speed = v Final speed = 5v Mass = 1 Wanted: Momentum Solution:<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"3","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"Momentum equation","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"footnotes":""},"categories":[3],"tags":[],"class_list":["post-8123","post","type-post","status-publish","format-standard","hentry","category-solved-problems-in-basic-physics"],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/gurumuda.net\/physics\/wp-json\/wp\/v2\/posts\/8123","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gurumuda.net\/physics\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gurumuda.net\/physics\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gurumuda.net\/physics\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gurumuda.net\/physics\/wp-json\/wp\/v2\/comments?post=8123"}],"version-history":[{"count":6,"href":"https:\/\/gurumuda.net\/physics\/wp-json\/wp\/v2\/posts\/8123\/revisions"}],"predecessor-version":[{"id":9854,"href":"https:\/\/gurumuda.net\/physics\/wp-json\/wp\/v2\/posts\/8123\/revisions\/9854"}],"wp:attachment":[{"href":"https:\/\/gurumuda.net\/physics\/wp-json\/wp\/v2\/media?parent=8123"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gurumuda.net\/physics\/wp-json\/wp\/v2\/categories?post=8123"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gurumuda.net\/physics\/wp-json\/wp\/v2\/tags?post=8123"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}