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A 30kg child and 20kg

A 30kg child and 20kg child sit on the opposite ends of a seesaw pivoted at its centre. Where should another 20kg child sit in
1. 1 answer
2. asked by Thandizo
3. 768 views
a 20kg block is connested to a 30kg block by a string that passes over a frictionless pully. the 30kg block is connected to a
1. 1 answer
2. asked by sello
3. 849 views
A 30kg child runs 4m/s and jumps onto a shopping cart which has a mass of 20kg. Assuming the child rides on the card after the
1. 2 answers
2. asked by Ev
3. 171 views
Sam pushes crates starting form rest across the floor of his classroom for 3 s with a net force as shown above. For each crate,
1. 2 answers
2. asked by Kay
3. 4,521 views
108 identical books have a mass of 30kg.find the number of such books that has a mass of 20kg.
1. 2 answers
2. asked by hussnain
3. 589 views
A 30kg student pushes a 20kg box on a frictionless surface. If student accelerates at 0.80 m/s^2, what is acceleration of the
1. 4 answers
2. asked by Brayden Hugo
3. 509 views
I child with a mass of 20kg,hops on a merry go round with moment of intertia of 1000kg and radius of 7m.if it takes the child
1. 0 answers
2. asked by john
3. 939 views
The system starts at rest. A mass of 20kg (m1) is connected to a pulley of uniform mass m=5kg and radius 10cm and a mass of 30kg
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2. asked by Maddi
3. 603 views
A person must move two heavy packages over a surface level so they place a 20kg package over a 30kg package and decide to move
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2. asked by Alex
3. 432 views
A person must move two heavy packages over a surface level so they place a 20kg package over a 30kg package and decide to move
1. 1 answer
2. asked by Alex
3. 452 views