A barefoot field-goal kicker imparts a speed of 44 m/s to a football initially at rest. If the football has a mass of 0.41 kg and the time of contact with the ball is 0.033 s, what is the magnitude of the force exerted by the ball on the kicker’s foot? Answer in units of N.

A dog and a sledge are on the frictionless ice of a frozen lake, 11.6 m apart but connected by a rope of negligible mass. The dog exerts a certain horizontal force (N) on the rope. If magnitudes of the sledge and the dog accelerations are o.8 m/s and o.2 m/s2, respectively. How far from the dog's initial position (m) do they meet?

A(n) 878 kg drag race car accelerates from rest to 102 km/h in 0.962 s. What average force is exerted on the car?Answer in units of N.

An object is acted on by two forces, 10i + 3j and  (with magnitudes in newtons). The object has an acceleration of 2ms-2 in the direction of the resultant force. What is the mass of the object in kilograms to two significant figures?

A car moving at 14 m/s crashes into a tree and stops in 0.91 s. The mass of the passenger inside is 69 kg. Calculate the magnitude of the average force, in newtons, that the seat belt exerts on the passenger in the car to bring him to a halt.

9:58 PM Sun Feb 27 blackboard.albany.edu A 令74% O exactly as strong as the force of gravity on a 3-kg mass QUESTION 3 1 points A rocket is launched vertically from the Earth, and the thrust (pushing force) from the engines is directed upward, and has a magnitude of 5.00 x 106 N. The mass of the rocket is initially 2.00 x 10° kg. What is the initial acceleration of the rocket, assuming you can neglect air resistance? 25.0 m/s? 15.2 m/s2 O 7.6 m/s? 50.0 m/s2 1 points QUESTION 4 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Sa Save All Answers

A large rocket has a mass of 2.00×106kg at takeoff, and its engines produce a thrust of 3.50×107 N . (a) Find its initial acceleration if it takes off vertically. (b) How long does it take to reach a velocity of 120 km/h straight up, assuming constant mass and thrust? (c) In reality, the mass of a rocket decreases significantly as its fuel is consumed. Describe qualitatively how this affects the acceleration and time for this motion.

A 0.51 kg football is thrown with a velocityof 18 m/s to the right. A stationary receivercatches the ball and brings it to rest in 0.020s.What is the force exerted on the receiver?Answer in units of N.

On 24 November 2021 the DART (Double Asteroid Redirection Test) spacecraft was launched. Its mission is to assess the ability of an impact to deflect the path of an asteroid. DART was launched on a Falcon 9 rocket. At launch a Falcon rocket has a mass of 555 000 kg and generates a force of 7.6 x 106 N. A. Neglecting the effect of gravity, what is the initial acceleration of the rocket? Give your answer to an appropriate number of significant figures. B. Assuming that the initial acceleration remains constant, how fast will the rocket be moving after 2 seconds? C. In practice, as the rocket burns fuel, its mass decreases. Assuming the thrust remains the same, how would your answer to part (ii) change? Would the speed after 2 seconds be lower, the same or higher?

A large rocket has a mass of 2.00×106 kg at takeoff, and its engines produce a thrust of 3.50×107 N . (a) Find its initial acceleration if it takes off vertically. (b) How long does it take to reach a velocity of 120 km/h straight up, assuming constant mass and thrust? (c) In reality, the mass of a rocket decreases significantly as its fuel is consumed. Describe qualitatively how this affects the acceleration and time for this motion.