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A person of mass 70kg

A person of mass 70kg slides across a slippery floor at 2m/s. If the coefficient of kinetic friction is 0.05 and that of static
1. 3 answers
2. asked by Joachim
3. 572 views
How big would a spherical helium balloon have to be to lift a 70kg person? The mass of the balloon's skin is 4.0kg
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2. asked by sandra
3. 524 views
barrel is 70kg, and height of dock is 2 meters.How much work do you do when lifting the barrel? was sure if you convert the 70kg
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2. asked by mitch
3. 475 views
A man of mass 70kg carries a mass of 10kg to the top of a building 100m high.Calculate work done by the man.Take g=10m/s
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2. asked by Anonymous
3. 497 views
A block of mass m1= 3.70kg rests on a 30degree incline and is held stationary by a mass of 1.3kg hanging vertically over a
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2. asked by james
3. 618 views
The weight of a person and his luggage should not be greater than 150kg when travelling;(i) If the weight of the laggugge is W
1. 1 answer
2. asked by Ellen
3. 621 views
A train on a mountain railway is carrying 200 people of average mass 70kg up a slope at an angle of 30° to the horizontal and
1. 2 answers
2. asked by Me
3. 2,895 views
Please help me with this questionHow much work is done by a boy of mass 70kg who ran up a flight of 31steps each15m high. Take
1. 1 answer
2. asked by Cassandra
3. 557 views
the mass of the boy is 70kg. calculate the force in newtons acting on the boy due to his deceleration. how do i work this out
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2. asked by evie
3. 528 views
A dynamics cart with a mass of 1.70kg on a horizontal table is attached to a suspended mass of 0.40kg and released from rest. If
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2. asked by S
3. 580 views