1 For how long does a man exert 144 newtons on a car for 27 meters, if the power with which he is pushing the car is 35 watts 2 Determine the net force required to accelerate a 2450 kg Camaro from 0 to 44 m s in 8 0 seconds 3 What is the resultant vector if you add vector (4,4) to vector (3,2) 4 A 9 kg stone drops from a height of 20 meters What is its velocity when it hits the ground 5 A string tied to a rock is being twirled around Mary's head at 5cycless If the rock has a mass of 700 g and the string is 70 cm long, what is the tension in the string 6 A 2 1 kg ball is thrown upwards At a height of 12 5 m above the ground, its velocity is 18 m s What is its gravitational potential energy The value of g is 9 8 m s 2 7 A 6 N force acts on a 3 kg block for 5 seconds If the block is initially at rest on a frictionless surface, what is the block's final velocity 8 A puck sliding on ice approaches a 30 ramp at 20 m s with coefficient of friction 0 15 How high will it go up the ramp along the ramp's surface 9 A cannon fires a shell at 85 m s at an angle of 30 Where does the shell hit downrange 10 What is the force of gravity on a space craft 12,800 km above the Earth's surface if its mass is 3000 kg (G 6 67 x 10 11 m 3 kgs 2 , the mass of the Earth is 5 972 10 24 kg, and the radius of the Earth is 6 371 x10 6 m) 11 A man can swim across a river at a speed of 14 m s due East, but the river's current is flowing South at 6 m s, what is his velocity with respect to the bank

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1. For how long does a man exert 144 newtons on a car for 27 meters, if the power with which he is pushing the

1. For how long does a man exert 144 newtons on a car for 27 meters, if the power with which he is pushing the car is 35 watts?

2. Determine the net force required to accelerate a 2450-kg Camaro from 0 to 44 m/s in 8.0 seconds.

3. What is the resultant vector if you add vector (4,4) to vector (3,2)?

4. A 9 kg stone drops from a height of 20 meters. What is its velocity when it hits the ground?

5. A string tied to a rock is being twirled around Mary's head at 5cycless. If the rock has a mass of 700 g and the string is 70 cm long, what is the tension in the string?

6.A 2.1 kg ball is thrown upwards. At a height of 12.5 m above the ground, its velocity is 18 m/s. What is its gravitational potential energy? The value of g is 9.8 m/s².

7. A 6 N force acts on a 3 kg block for 5 seconds. If the block is initially at rest on a frictionless surface, what is the block's final velocity?

8. A puck sliding on ice approaches a 30 ramp at 20 m/s with coefficient of friction 0.15. How high will it go up the ramp along the ramp's surface?

9. A cannon fires a shell at 85 m/s at an angle of 30. Where does the shell hit downrange?

10.What is the force of gravity on a space craft 12,800 km above the Earth's surface if its mass is 3000 kg? (G = 6.67 x 10^-11 m³/kgs², the mass of the Earth is 5.972 10²⁴ kg, and the radius of the Earth is 6.371 x10⁶ m).

11. A man can swim across a river at a speed of 14 m/s due East, but the river's current is flowing South at 6 m/s, what is his velocity with respect to the bank?