![SOLVED: A train travels 400 metre in 10 seconds find its speed in metre per second and kilometre per hour SOLVED: A train travels 400 metre in 10 seconds find its speed in metre per second and kilometre per hour](https://cdn.numerade.com/ask_previews/a153a27c-534f-4d83-8b1c-fba7972834ac_large.jpg)
SOLVED: A train travels 400 metre in 10 seconds find its speed in metre per second and kilometre per hour
![A ball of mass 20 gram hits a wall at an angle of 45 degree with a velocity of 15 metre per second. if the ball rebounds at 90 degree to the A ball of mass 20 gram hits a wall at an angle of 45 degree with a velocity of 15 metre per second. if the ball rebounds at 90 degree to the](https://search-static.byjusweb.com/question-images/byjus/infinitestudent-images/ckeditor_assets/pictures/110507/content_img_20180216_154240.png)
A ball of mass 20 gram hits a wall at an angle of 45 degree with a velocity of 15 metre per second. if the ball rebounds at 90 degree to the
![A particle moves for 20 s with speed 6 m/s andthen speed 8 m/s for another 20 s and finallymoves with speed - Brainly.in A particle moves for 20 s with speed 6 m/s andthen speed 8 m/s for another 20 s and finallymoves with speed - Brainly.in](https://hi-static.z-dn.net/files/dda/168de29a87f63a0d6e0b1ddac7f08dba.jpg)
A particle moves for 20 s with speed 6 m/s andthen speed 8 m/s for another 20 s and finallymoves with speed - Brainly.in
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