A 11 kg boy is riding his motocycle on the road. He exerts an 85 N force parallel to the road. If the acceleration of the bicycle is 1.9 m/s, then what is the mass of the bicycle?
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A: Alice is pushing a 20 kg cart to the left, Bob is pushing back to the right. The cart is moving at a…
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A: Mass of body (m) = 2 kg velocity (v) = 4 m/s time (t) = 5 seconds
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Q: A child’s model boat, when placed in a creek, accelerates from rest at 1.51 m/s2. If the river is…
A: Initial velocity = 0 msAcceleration (a) = 1.51 ms2Force (F) = 0.79 N
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A: Acceleration of 150-kg mass also = 1.00 m/s2Frictional force on the 150 kg is = 150 × 9.81 × cos 30…
Q: a. 1.95 N b. 0.75 N c. 1.00 N
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A: Horizontal force applied (F) = 608 N Mass of crate (M) = 225 kg Coefficient of kinetic friction =…
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Q: A 10 kg object starts from rest and achieves a speed of 20 m/s in 10 s. How much force (in N) acted…
A: Mass of the object m=10 kg The initial speed of the object u =0 m/s The final speed of the object v=…
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Q: A 50.0 kg girl and a 100 kg boy, stand on a frictionless frozen lake at a distance 6.0 m apart.…
A: mass of girl = 50 kg mass of boy = 100 kg distance between girl and boy = 6 m force exerted by boy…
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A: Given value--- mass of elephant = 1910 kg. mass of car = 2890 kg. total force = 9750 N We have to…
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Q: You and your friend are moving a 82kg box across the floor at a constant speed. You are pushing on…
A: mass of box = 82 kg Applied force (F1) = 62 N , parallel to the floor Pulling force by friend (F2) =…
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- A person catches a ball with a mass of 145 g dropped from a height of 60.0 m above his glove. His hand stops the ball in 0.0100 s. What is the force exerted by his glove on the ball? Assume the ball slows down with constant acceleration.You are in charge of a cannon that exerts a force 17100 N on a cannon ball while the ball is in the barrel of the cannon. The length of the cannon barrel is 2.37 m and the cannon is aimed at a 36.7 ◦ angle from the ground. The acceleration of gravity is 9.8 m/s 2 . If you want the ball to leave the cannon with speed v0 = 89 m/s, what mass cannon ball must you use? Answer in units of kg. Answer in units of kg.Joe pushes down the length of the handle of a 14.1 kg lawn spreader. The handle makes an angle of 47.1° with the horizontal. Joe wishes to accelerate the spreader from rest to 1.39 m/s in 1.7 s. What force must Joe apply to the handle? Answer in units of N.
- A tractor is speeding up at 3 m/s/s while pulling a 744 kg sled with a rope at an angle of 34 degrees. The coefficient of kinetic friction between the sled and ground is 0.5. What is the tension (Newtons) in the rope? (g=9.8 m/s2)Greg is diving of the 20 m board. As he falls gravity pulls him with a weight of 800 N. 100 n of friction is pushing against his motion. What is his net forceA car traveling at 27.2 m/s hits a bridge abutment. A passenger in the car, who has a mass of 65.0 kg, moves forward a distance of 57.0 cm while being brought to rest by an inflated air bag. Assuming that the force that stops the passenger is constant, what is the magnitude F of this force?
- You and your friend are moving a 82kg box across the floor at a constant speed. You are pushing on the crate parallel to the ground with a force of 62N. Your friend has a rope tied to the box and they are pulling it at an angle of 37° to the ground with a force of 32N. Construct the free body diagram showing the force acting on the crate in order to find the magnitude of friction the floor exerts on the box.Mary applies a force of 78 N to push a box with an acceleration of 0.40 m/s2. When she increases the pushing force to 90 N, the box's acceleration changes to 0.66 m/s?. There is a constant friction force present between the floor and the box. (a) What is the mass of the box in kilograms? kg (b) What is the coefficient of kinetic friction between the floor and the box?