Grade 12Mechanics

a motor cycle is going due to north ata speed of 50 km/h.it makes a 90 degrees left turn without changingthe speed.the change in the velocity is

sri harshitha honey

6 Years agoGrade 12

2 Answers

Saurabh Koranglekar

Approved Tutor Answer6 Years ago

Dear student

Please find the link below

https://www.askiitians.com/forums/Mechanics/a-motor-car-is-going-due-north-at-a-speed-of-50km_108223.htm

Regards

Vikas TU

6 Years ago

Dear student

consider these velocities on an x-y plane with vectors i and j (+i = East, -i = West, +j = North, -j = South):

initial velocity = 50j.

final velocity = -50i.

change in velocity (Δv) = final velocity – initial velocity = -50i -50j

and -i direction (west) and -j direction (south), so the total change in velocity will be pointing towards the southwest.

|Δv| = √[(-50)² + (-50)²]
|Δv| = 70.7 km/h

Hope this helps

Good Luck

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a motor cycle is going due to north ata speed of 50 km/h.it makes a 90 degrees left turn without changingthe speed.the change in the velocity is

sri harshitha honey

2 Answers

Saurabh Koranglekar

Vikas TU

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